Mechanical clock keys
Mechanical clock keys is the clock part that is most frequently lost. Once the clock key is no longer with the clock it always seems to end up missing. With the below information you can order a new key utilizing the clock key size chart.
Getting the right one
We have mechanical clock keys in all the sizes available. Between the key chart or by movement type information below, the chances are good of getting the perfect key. The movement type includes if the clock is made in Germany or USA and when it was made.
This is the fastest and most easiest way to get the clock key. The further back in time we go with clocks the more the key chart would need to be used instead. There will be a stamp with the country of origin on the back plate of the movement and this can help us get the key.
Keys for German units post WW2
German made post WW2 movements that are square or rectangle will take a number 8 keys or crank.
If the clock movement is round and made in Germany the key size is number 4. Some round ones will take a number 3 but if getting a 4 it will still fit and wind the clock either way.
Keys for USA units 1900 - 1950
American clocks made from around 1875 until after the second war almost always take the size 7 clock key. The number 7 keys fits the 8 day time / strike units pretty much every time and this is what USA made the most of. This rule may not apply to Westminster (3 places to wind) or time only (one place to wind) clock movements.
Keys for Korean and Chinese clocks
Size 7 for these units usually. All the 31 day clocks with Asian movements and also US replicas made in India, all take size 7.
The over wound myth
Of course any clock that is not working will be wound all the way up from trying to make it run. Everyone winds it up and the clock does not work so the non working clock is always wound up.
The only way a clock can be over wound is if its been wound up for so long that the mainspring stuck.
When the mainspring is stuck together to itself with rust and goo for so long it may stick that way. This is rarely the situation and usually the clock would have rust on it if the mainspring is so wound up it will not wind down.
Double-End Clock-Key F-S Note
The following is a Double-End Clock-Key F-S Note that will be very handy. Some clocks have a small place that looks like a mini clock winding arbor at the 12. It may say F/S or A/R. The F/S represents fast or slow, and the A/R represents advance or retard.
This controls the timing of the clock and turning it to fast or advance makes time faster and the opposite for slow. An ideal double end key fits both the winding arbor to wind the clock and also fits the smaller time regulator aspect.
This is not easy to get and at the same time is the most lost part. It is possible to regulate the clock another way with an adjustable bob instead of a fixed length bob.
Get the double end key the hard way
Using the clock key size chart, get the right size that the clock requires. This chart works for both the fast/slow regulator and also to wind the clock.
However, this is not easy because it requires a measurement of the post the double end key fits onto. In order to get this measurement remove the clock movement or the dial. Without access to the front of the movement it is hard to measure exactly how wide the arbors are that the key is to go on.
Double end clock key the easy way
There are many sizes and combinations for the double end key and it may be tricky to get the right size. Sometimes it is best to just get the 4 pack of double end keys we offer
. These are the top 4 most common double end clock keys so the odds are one will be the correct key. Ideally this will supply the clock with a key that fits both the F/S regulator and the winders. However be aware this 4 pack does not guarantee one will work.
Double-End Clock Key F-S Note Continued - An alternate method
It is possible to forget the whole double end key game and use a single end key instead. It does make things easier and is a better long term solution.
Inevitably, once the perfect fit the key will get lost again. This seems to be the trend of what happens. Once the key is separate from the clock, there is a higher chance of it getting lost. Many times we suggest putting the key in the bottom of the clock case for safe keeping
Using an adjustable bob instead
The solution to the double end key problems is to get the single end key to wind the clock. Also get the adjustable bob. The adjustable bob can be regulate the clock with the pendulum instead.
The bob will have a nut on the bottom. Raise the bob on the pendulum to speed up time. The opposite is true for slowing time down. Once regulating the clock, it will stay this way for the most part. Some timing may or may not need to be done when the temperature changes vastly.
For the most part, time the clock and it will stay that way within a couple of minutes a day all year long. The adjustable pendulum bob comes in three sizes, or bob diameters. The middle or smaller diameter bob is fine for most clocks because the weight is not as important as the length.
Parts available to purchase
Other parts to consider besides the double end clock keys. We have two styles of the adjustable pendulum bobs. One of them is the three sizes of bobs that have the nut underneath. We call this the Adjustable Mantle Clock Bob.
There is another style bob that is adjustable from the back side. We just call it the Adjustable Antique Style Mantle Clock Bob. They both function the same, it has a bob on the pendulum that can regulate the time.
The part they hang onto is usually a long wire with flex spring steel on the top. This gets bent and cut into shape for the proper length. It comes in a three pack and we call them the Long Suspension Spring Rods.
Clock key size chart explanation
Clock keys have there own number system from 000 to 16 as seen in the Clock key size chart. However the number does not indicate what size is what number and can be confusing. So how do you use the Clock key size chart to get the right key?
It would make more sense if the key size was the MM of how wide the key was to fit, but this is not how it works. This section is to figure out what key number to order so the clock can be wound up. Subsequently, the clock key gets lost the most out of any other clock part.
Of course, it can be tricky to find the right key for your clock because there are many sizes. The Clock key size chart will give us the right size key to order.
Double end clock keys
In addition, some keys have two sizes on one key and this is called a double end key. By and large, the clock key size chart will work for both the wind up part of the clock and also the smaller F / S portion. When the clock has a F / S regulator portion it will be at the 12 o'clock on the dial.
Alternately, if there is a small arbor inside of a hole at 12, this is the time regulator control and the key would have two ends. Thus, it may say F / S at this location or A / R. F / S stands for Fast or Slow, or it could say A / R to stand for Advance or Retard and is referring to the timing of the clock.
Of course, if the clock is running fast in time, turn more to the Slow or Retard direction to slow it down. Refer to the Clock key size chart with your measurements to find a key to work with this function.
Getting the right Clock key size
Given these points, to get the key needed, measure the shaft the key is to go on to, then use the Clock key size chart to get the key size needed.
Please do not call asking what key the clock needs, as you will be told it would still have to be measured. In short, measure the shaft that the key goes onto in MM and then use the clock key size chart to match it up.
The lazy way instead of the Clock key size chart
The Clock key size chart has all of the sizes listed however sometimes certain key sizes are known. Generally speaking, almost all post 1960 mechanical clocks, made in Germany take a size #8 key or crank, unless the movement is round.
Ordinarily the round ones take a number 4. The American time strike antique units mostly take the size 7 key. Match your measurements to the Clock key size chart to be sure.
- 1.75mm = 000 Key
- 2.0mm = 00 Key
- 2.25mm = 0 Key
- 2.5mm = 1 Key
- 2.75mm = 2 Key
- 3.0mm = 3 Key
- 3.25mm = 4 Key
- 3.5mm = 5 Key
- 3.75mm = 6 Key
- 4.0mm = 7 Key
- 4.25mm = 8 Key
- 4.5mm = 9 Key
- 4.75mm = 10 Key
- 5.00mm = 11 Key
- 5.25mm = 12 Key
- 5.5mm = 13 Key
- 5.75mm = 14 Key
- 6.0mm = 15 Key
Brass Single-End Clock Key
Single end brass clock key to wind up a wall or mantle mechanical clock movement. See instructions on the top tabs for how to get the right size key for your clock. Most post 1960 mechanical clocks, made in Germany, take a size #8 key or crank. This is for the most part always true with the exception of round movements, these take size 4.
I have a Urgos key mantel clock I’m not sure what year I believed to be bought in Germany in the 50’or 60’s what key should I get?
Size 8 usually
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
What size clock key for a Dugena wall clock?
Not sure on that one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
What size clock key for an Ansonia “Ezee-Set” clock?
Do you sell this key?
Yes please order on this very same page please
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Usually size 7 for the Ansonia antique units made prior to 1950
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a D&A pendulum wall clock that as near as I can tell takes a 4,5 mm key. Not sure how that corresponds to your size chart. Let me know if that is correct if you can
Not sure of what size that clock takes
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
need part # 01-53 and 01-54 full size kundo 400 day clock
Sorry do not have these. Best to find a junker on http://www.ebay.com
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
My model number is a Seth Thomas E537-001 What key do I need ?
Size 7 usually for that one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
That key is way too big for that clock in my experience. Seth Thomas, Cat: 1008, Name: Helmsman-W, Model: E537-001 Back to the drawing board I guess.
That one takes size 3 usually
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
My Elgin E-49 Clock needs a crank key. I do not know the size..
Please gives me a suggestion for that clock’s key.
If the movement is square and post 1950 it is a size 8. If the clock is round and post 1950 the key size is 4
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Good Afternoon. My Clock is Elgin E-49 clock. I do not know the size.
Would U sells me a fits size crank key?
Thank U!!!
From here, not sure.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hello Can you help me find the clock key size for Sligh mantel clock – Model 0515-1-AB, Movement 502-2961, Reg 401-137-6636. Thank you, Diane
We have keys at this link
https://www.clockworks.com/product-category/all-clock-parts/clock-keys-and-cranks
Here we have clock keys in all the sizes available. We get many calls asking what key their clock takes and over the phone it is difficult to say you need key size this or that. Do not call. Best to read the below text on how to use the clock keys chart and get the correct sized key to wind your clock.
Most common sizes are as follows, these are the usual sizes and not always the situation every time.
German made round movements Size 3 or 4. If ships bell, size 3, the rest size 4
German made square / rectangle units post WW2 Size 8
German Grandfather clock cranks post WW2 Crank key Size 8
American time / strike units Size 7
Korean / Chinese 31 day units Size 7
Clock key size chart explanation
Clock keys have their own number system from 000 to 16 as seen in the Clock key size chart. However the number does not indicate what size is what number and can be confusing. It would make more sense if the key size was the MM of how wide the key was to fit, but this is not how it works. This section is to figure out what key number to order so the clock can be wound up. Subsequently, the clock key gets lost the most out of any other clock part. Of course, it can be tricky to find the right key for your clock because there are many sizes. The Clock key size chart will give us the right size key to order.
Double end clock keys
In addition, some keys have two sizes on one key and this is called a double end key. By and large, the clock key size chart will work for both the wind up part of the clock and also the smaller F / S portion. When the clock has a F / S regulator portion it will be at the 12 o’clock on the dial.
Alternately, if there is a small arbor inside of a hole at 12, this is the time regulator control and the key would have two ends. Thus, it may say F / S at this location or A / R. F / S stands for Fast or Slow, or it could say A / R to stand for Advance or Retard and is referring to the timing of the clock. Of course, if the clock is running fast in time, turn more to the Slow or Retard direction to slow it down. Refer to the Clock key size chart with your measurements to find a key to work with this function.
Getting the right Clock key size
Given these points, to get the key needed, measure the shaft the key is to go on to, then use the Clock key size chart to get the key size needed. Please do not call asking what key the clock needs, as you will be told it would still have to be measured. In short, measure the shaft that the key goes onto in MM and then use the clock key size chart to match it up.
The lazy way instead of the Clock key size chart
The Clock key size chart has all of the sizes listed however sometimes certain key sizes are known. Generally speaking, almost all post 1960 mechanical clocks, made in Germany take a size #8 key or crank, unless the movement is round. Ordinarily the round ones take a number 4. The American time strike antique units mostly take the size 7 key. Match your measurements to the Clock key size chart to be sure.
Shaft width / Key #
1.75mm = 000 Key
2.0mm = 00 Key
2.25mm = 0 Key
2.5mm = 1 Key
2.75mm = 2 Key
Shaft width / Key #
3.0mm = 3 Key
3.25mm = 4 Key
3.5mm = 5 Key
3.75mm = 6 Key
Shaft width / Key #
4.0mm = 7 Key
4.25mm = 8 Key
4.5mm = 9 Key
4.75mm = 10 Key
5.00mm = 11 Key
Shaft width / Key #
5.25mm = 12 Key
5.5mm = 13 Key
5.75mm = 14 Key
6.0mm = 15 Key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
We have a Mauthe wall clock. The size 8 key is too small. The shafts may be about 5mm, but they are recessed and hard to measure. It was made in Germany and the number 140-93 is on the back. Any idea what size key we need?
Strange, Mauthe loved size 8. Maybe your key is just worn on the inside. Do not know what size from here.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Victoria & Albert Museum Marie Antoinette clock. Sticker on the bottom brass plate says Crafted in Malaysia. This clock has two shafts that are recessed in the front that appear to be the same size. I am unable to measure the winding shafts because of the recess. Would you know what size key this clock takes ?
Usually size 7 for these
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Ok, thanks for your reply.
Thanks for the kind of information. I saw it on the clock Hardware website.
I need a winding key for a Seth Thomas E537-001 Helmsman clock. Do you have the key size?
Usually size 7
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Seth Thomas Wharton mantle clock model 1219-000 that I need replacement key. What size key do I need?
It says
Made in Germany for Seth Thomas Division
General Time Corp.
A401-004
two jewels
7210
That one takes the size 8 key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hi,
What are the numbers off of the back plate of the clock movement itself? If it is hard to get to, usually you can stick a cell phone up behind the movement and get a picture of the numbers. Or through the side access panel if there is one.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Sligh Model 0503-1-HC Mantel clock with Number 068-0018-88. I need a key for this. Do I need any additional information to purchase a winding key?
Size 8 key / crank
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a mantle clock, it is a Linden Black Forest, Cuckoo Clock Mfg. Co. Inc. The #’s on the back is: 341-020, 11 cm, 200.78, I need to find a key. How do I know what size to get?
Size 8 key for that one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hello-
I have a Roehm and Wright stone mantle clock from 1850’s out of Detroit. The clock face has 2 square shapes each recessed in a circle at the 4 and 8 o clock positions which I presume are where the key inserts? Can you tell me the size key to buy? Thanks!
Usually size 7 for that, not always
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Ridgeway Grandfather Clock and the
key has been lost. I found this # on the clock 90839932. Can you assist me in getting a replacement key?
Door key or clock crank?
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Seth Thomas mantle clock. Would that be an 8 key? The rapidly cracking key I have is HR 75-274 West Germany even though the clock says made in U.S.A.
Yes, unless it is a round movement. If square or rectangle it will take size 8 key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Howard Miller Bellingham Mantle Clock and I need a key for it. What size do I need?
Usually size 8 for that one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Seth Thomas Legacy IV mantel clock. On the directions in the back of the clock it has the number 7210. On the works of the clock it states “ Made in Germany for Seth Thomas division general time corp. A 403-001 two (2) jewels. 7206. Catalog #1301 1303.” I need a replacement key. Please advise which key will work. Appreciate it.
Hi,
Size 8 key for that one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have an Enfield mantle clock made in U K. What Size key doI need?
Dont know that one.
Our full range of clock keys and cranks, along with informational help tabs are located at this link
https://www.clockworks.com/product-category/all-clock-parts/clock-keys-and-cranks
In order to get the correct key size you need to measure the shaft in which the key is to go on in millimeters. Then match that up with the key size chart, this link
https://www.clockworks.com/posts/clock-key-size-chart-to-get-the-right-key
If having a hard time measuring, some choose the 5 prong key set that covers most sizes
https://www.clockworks.com/product/5-prong-clock-key-set
Here is some more info on how to find the right clock key
https://www.clockworks.com/posts/how-to-get-the-right-mechanical-clock-key
We offer the most popular single end brass key at this link
https://www.clockworks.com/product/brass-single-end-clock-key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Harris & Mallow Product made in Lakewood, NJ what size key does it take?
Not sure what size clock key from here, best to use the key chart
https://www.clockworks.com/posts/clock-key-size-chart-to-get-the-right-key
Here is some info on how to find the right clock key
https://www.clockworks.com/posts/how-to-get-the-right-mechanical-clock-key
We offer a single end key at this link
https://www.clockworks.com/product/brass-single-end-clock-key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
AWI / BHI / Lifetime NAWCC
Need a key for winding a Sligh mantle clock purchased in the 1980’s. It is two jewels and the numbers 1050-021 are written inside. I read the chart you provide but unsure how to determine the shaft length. Thanks in advanve
Hi,
Takes size 8 key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Welby windup clock dated 1942. German made. Which key do I need please?
Usually size 8
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Thank you
Perfect! Thanks clockworks.
Size needed for Scottish drumhead 8 day grandfather clock?
Hi,
I cant say from here, but usually the GFs really liked the size 8 crank
Hi
We have keys at this link
https://clockworks.com/clock-parts/clock-keys.html
Here we have clock keys in all the sizes available. We get many calls asking what key their clock takes and over the phone it is difficult to say you need key size this or that. Do not call. Best to read the below text on how to use the clock keys chart and get the correct sized key to wind your clock.
Most common sizes are as follows, these are the usual sizes and not always the situation every time.
German made round movements Size 3 or 4. If ships bell, size 3, the rest size 4
German made square / rectangle units post WW2 Size 8
German Grandfather clock cranks post WW2 Crank key Size 8
American time / strike units Size 7
Korean / Chinese 31 day units Size 7
Clock key size chart explanation
Clock keys have their own number system from 000 to 16 as seen in the Clock key size chart. However the number does not indicate what size is what number and can be confusing. It would make more sense if the key size was the MM of how wide the key was to fit, but this is not how it works. This section is to figure out what key number to order so the clock can be wound up. Subsequently, the clock key gets lost the most out of any other clock part. Of course, it can be tricky to find the right key for your clock because there are many sizes. The Clock key size chart will give us the right size key to order.
Double end clock keys
In addition, some keys have two sizes on one key and this is called a double end key. By and large, the clock key size chart will work for both the wind up part of the clock and also the smaller F / S portion. When the clock has a F / S regulator portion it will be at the 12 o’clock on the dial.
Alternately, if there is a small arbor inside of a hole at 12, this is the time regulator control and the key would have two ends. Thus, it may say F / S at this location or A / R. F / S stands for Fast or Slow, or it could say A / R to stand for Advance or Retard and is referring to the timing of the clock. Of course, if the clock is running fast in time, turn more to the Slow or Retard direction to slow it down. Refer to the Clock key size chart with your measurements to find a key to work with this function.
Getting the right Clock key size
Given these points, to get the key needed, measure the shaft the key is to go on to, then use the Clock key size chart to get the key size needed. Please do not call asking what key the clock needs, as you will be told it would still have to be measured. In short, measure the shaft that the key goes onto in MM and then use the clock key size chart to match it up.
The lazy way instead of the Clock key size chart
The Clock key size chart has all of the sizes listed however sometimes certain key sizes are known. Generally speaking, almost all post 1960 mechanical clocks, made in Germany take a size #8 key or crank, unless the movement is round. Ordinarily the round ones take a number 4. The American time strike antique units mostly take the size 7 key. Match your measurements to the Clock key size chart to be sure.
Shaft width / Key #
1.75mm = 000 Key
2.0mm = 00 Key
2.25mm = 0 Key
2.5mm = 1 Key
2.75mm = 2 Key
Shaft width / Key #
3.0mm = 3 Key
3.25mm = 4 Key
3.5mm = 5 Key
3.75mm = 6 Key
Shaft width / Key #
4.0mm = 7 Key
4.25mm = 8 Key
4.5mm = 9 Key
4.75mm = 10 Key
5.00mm = 11 Key
Shaft width / Key #
5.25mm = 12 Key
5.5mm = 13 Key
5.75mm = 14 Key
6.0mm = 15 Key
The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2020
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I purchased this clock on line and it was loosing 2 minutes a day. I took 2 of the weights out put the balance wheel back in the clock
I don’t know what i did but the balance wheel will not run at all. any suggestions p-lease.
Well, I was told by these clocks experts that If your mantel clock is losing around 2 minutes a day to remove about
two small weights on the balance wheel. It seems like there is not much information on Balance wheels as there is on
pendulums.I prefer a pendulum because it is easier to adjust the time on the clock. just turn a nut at the bottom.
where as you have to take the balance wheel apart if it is losing or gaining a lot of time.So now after removing two weights
and putting the balance wheel back in the clock the clock fails to run.
Hi,
Mantle clocks do not take weights, unless it is an OGee clock, and these do not have a balance. The terminology is ambiguous and needs clarity, a pic is best.
Balance wheels to have weights on them as temperature compensating screws only and to poise the balance. These are not to be messed with, only time a balance with the method intended either by manipulating the regulator arm if platform style, or the screw if floating style.
Best to email a pic so I can help by seeing what you have and I will provide the best course of action to time the clock, no charge.
Clockworks@clockworks.com
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Iam confused by the terms used. You say it is weight driven, but it is very unusual to have a weight driven clock with a balance escapement. Please clarify the issue.
Can you email some pics of the movement to us? It is clockworks@clockworks.com
We will quote for a new one if available, and if not offer our repair service
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
We have a Hamilton 2 jewel mantle clock made in Germany that we need a replacement key for! There is an 82 above the word Hamilton & below that is 340-020. The movers lost the key to it & it is no where to be found!
Hi,
Takes a size 8 key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Thank you so much! You’re the best!!
Hello, I have a Seth Thomas model 890 and can’t find the key. Looking for the right size
Usually size 7 for those
https://www.clockworks.com/?post_type=product&s=Key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Thank you
I have a Hermle Leyton Mantel Clock with a missing key. It appears to require a square key? What size do I need? Numbers on the back of clock are 791-081 and 16.5cm.
I think that one is size 4, but I could be wrong. This link
https://www.clockworks.com/product/brass-single-end-clock-key
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Need a wind key for a Seth Thomas Helmsman E537-001 clock with a small diameter key hole
Key size 3 this link
https://www.clockworks.com/product/brass-single-end-clock-key
James
I know it takes a #3 key! That’s not my question! I have bought and returned #3 keys because the ‘outside’ shaft diameter of the key is to large to fit in the hole (appears to be only 5mm dia.) in the face of the clock to wind it. Do you have a #3 key whose outside shaft diameter will fit inside the clock face hole??????
Sorry but no, seems not
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Can the volume be adjusted on this mantel clock
On what clock please, what is the movement numbers off of the back plate of the clock movement itself?
James
I have a beautiful mantle clock my father made me in the early 90’s. I have lost the wind up key. Is it replaceable?
Size 8
https://www.clockworks.com/product/brass-single-end-clock-key
James
Size key clock schatz 53
Not sure on that particular clock. Best to use these instructions and get the right key
https://www.clockworks.com/posts/how-to-get-the-right-mechanical-clock-key
James
Hello! I have a Soviet Vostok submarine wall clock with a missing key. Can you help me?
Hi
We have keys at this link
https://clockworks.com/clock-parts/clock-keys.html
Here we have clock keys in all the sizes available. We get many calls asking what key their clock takes and over the phone it is difficult to say you need key size this or that. Do not call. Best to read the below text on how to use the clock keys chart and get the correct sized key to wind your clock.
Most common sizes are as follows, these are the usual sizes and not always the situation every time.
German made round movements Size 3 or 4. If ships bell, size 3, the rest size 4
German made square / rectangle units post WW2 Size 8
German Grandfather clock cranks post WW2 Crank key Size 8
American time / strike units Size 7
Korean / Chinese 31 day units Size 7
Someone lost the key to my Ridgeway Grandfather clock. I have the serial number of the clock and it appears to have been made in 1982. How do I determine the proper key to purchase ?
It is key or crank size 8. Crank is best and we offer them at this link
https://www.clockworks.com/?post_type=product&s=Clock+crank
James
I have a vintage Syroco Starburst clock. What size key do I need?
Hi
We have keys at this link
https://clockworks.com/clock-parts/clock-keys.html
Here we have clock keys in all the sizes available. We get many calls asking what key their clock takes and over the phone it is difficult to say you need key size this or that. Do not call. Best to read the below text on how to use the clock keys chart and get the correct sized key to wind your clock.
Most common sizes are as follows, these are the usual sizes and not always the situation every time.
German made round movements Size 3 or 4. If ships bell, size 3, the rest size 4
German made square / rectangle units post WW2 Size 8
German Grandfather clock cranks post WW2 Crank key Size 8
American time / strike units Size 7
Korean / Chinese 31 day units Size 7
Franklin Mint reproduction Thomas Jefferson Grandfather Clock key
i have a seth thomas helmsman clock lost key were can i buy one and what size do i need
Please see this link for help ordering the correct size key for your clock:
How do I find a clock key? — https://clockworks.crisp.help/en/article/how-do-i-find-a-clock-key-1kue995/
Thank you !
i have lost the key for my seth thomas helmsman e537-001a what size key do i need to buy
Please see this link:
How do I find a clock key? — https://clockworks.crisp.help/en/article/how-do-i-find-a-clock-key-1kue995/
Hi, I have a vintage MAJAK Russian Crystal Mantel Clock with Bakelite base. I would like to order one your website but I am not sure regarding which key size…Can you help. Thanks.
Please see this link to help you find the key you need:
How do I find a clock key? — https://clockworks.crisp.help/en/article/how-do-i-find-a-clock-key-1kue995/
Thank you !
Clockworks Team
Do you know the size for a Smith Enfield mantle clock with two holes? I used a key that has ‘5’ stamped on it and it is a little too small.
Please see these links to help you get the correct key size:
How do I find a clock key? — https://clockworks.crisp.help/en/article/how-do-i-find-a-clock-key-1kue995/
Clock key size chart explanation — https://clockworks.crisp.help/en/article/clock-key-size-chart-explanation-169mtus/
Thank you !
Clockworks Team
I HAVE A WINDSOR (TEMPUS FIGUT) GRANDFATHER (FLOOR MODEL) CLOCK THAT NEEDS A KEY. IT WAS SILVER & HAD A SQUARE END, W/2 WIND UP SLOTS, ONE ON EACH SIDE OF FACE OF CLOCK. IT RINGS ON THE HR. & HALF HR. IT HAS BEEN RUNNING BUT NOT CHIMING. WE MOVED ONCE & CLOCK WORKED FINE….2ND. MOVE THE CLOCK WOULD NOT RUN, 3RD. MOVE CLOCK BEGAN TO RUN BUT LIKE I MENTIONED DOESN’T CHIME. DURING THS LAST MOVE THE KEY WAS LOST…THUS I’M LOOKING FOR A NEW KEY. CAN ANYONE HELP? WHERE CAN I FIND THE CHART FOR KEY MEASUREMENTS? AND SHOULD I BUY A KEY & IT DOESN’T FIT, IS IT RTURNABLE SO I CAN OEDERR SOMETHING ELSE. TX.
Hi
We have keys at this link
https://clockworks.com/clock-parts/clock-keys.html
Here we have clock keys in all the sizes available. We get many calls asking what key their clock takes and over the phone it is difficult to say you need key size this or that. Do not call. Best to read the below text on how to use the clock keys chart and get the correct sized key to wind your clock.
Most common sizes are as follows, these are the usual sizes and not always the situation every time.
German made round movements Size 3 or 4. If ships bell, size 3, the rest size 4 German made square / rectangle units post WW2 Size 8 German Grandfather clock cranks post WW2 Crank key Size 8 American time / strike units Size 7 Korean / Chinese 31 day units Size 7
Thank you !
Size 8 https://www.clockworks.com/product/brass-single-end-clock-key
James
Thank you !
I have a Kassel 31 day clock need a key. What size do I need.
Usually size 7
Thank you !
I have a Seth Thomas Legacy 3 W Cat 1314 I need a wind key…..do you know what size it takes?
Size 8 https://www.clockworks.com/?post_type=product&s=Crank
https://www.clockworks.com/product/brass-single-end-clock-key
Many Thanks !
James and Donna Stoudenmire http://www.clockworks.com 124 Goss Hill = UPS Mailing PO Box 339 = USPS Mailing Huntington, MA 01050 USA clockworks@clockworks.com
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Virus-free.
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I have an Elgin shool house 31 day clock.What size key do I need to wind the clock?
Usually 7, sometimes 8
Hi! I have an antique Sessions pendulum wall clock (my Mom calls it an “old-timey store clock that sat over a pickle barrel”)with a glass door. I broke the key and need another one. I can’t seem able to access your chart. Any advice?
measure the winding arbor in MM, we will be able to help you select a key
Here is the page with the chart and how to use it.
https://www.clockworks.com/product-category/all-clock-parts/clock-keys-and-cranks
Many Thanks !
James and Donna Stoudenmire http://www.clockworks.com 124 Goss Hill = UPS Mailing PO Box 339 = USPS Mailing Huntington, MA 01050 USA clockworks@clockworks.com
Virus-free.
http://www.avg.com
Virus-free.
http://www.avg.com
I have a seth thomas mantal clock Helmsman # e537-001. i deen a key for it do you have any
I have a Schatz Royal Mariner 8 Bells clock, 6 1/2″ case. The winding post is square, and measures 3/16″ across. Which key should I order?
Thanks very much.
Size 3 for a real tight fit. Size 4 for a loose fit.
Many Thanks !
James and Donna Stoudenmire http://www.clockworks.com 124 Goss Hill = UPS Mailing PO Box 339 = USPS Mailing Huntington, MA 01050 USA clockworks@clockworks.com
Virus-free.
http://www.avg.com
Virus-free.
http://www.avg.com
Thank you very much. I found your key chart, and it indicated that for a 3/16″ post (4.75 mm) I need a size 10 key. Am I reading the chart correctly?