Please view these information tabs to learn more about the 340-020 and other Hermle Clock Movement 340/341 units
Timing a balance clock movement
Balance Clock Movement Timing is done fairly easy. There are three types clock balance movement styles used after 1950. This section is for those balance units that do not have a platform escapement. The platform escapement can be read about in another section. These notes are only for the larger balance wheel in the top center of the clock movement. This was used by Urgos 6/ series and many of the Hermle clock movements. Such as 340-020 and 350-020. Out of these you have two styles, the old style and then the new style. The old style was used all through the 70's and 80's and 90's. Around this time that they switched to the new style on the Hermle units and by this time the Urgos units were out of production.
The old style
The old style is one with a round spring that goes up and down (Vertical). It goes in a circle around the center arbor of the balance wheel. In this style there is a slide arm with a tiny weight on the balance wheel itself. There is a + and - on the wheel. To speed up time go towards the plus sign. However this style is not always easy to regulate and can be very hard to get it perfect. The factory has special devices to make it perfect. However it’s not that easy on the customer end with this style balance. For this reason it has been improved upon during future manufacturing.
If you have the old style balance then your clock movement has some age to it. If this is the situation you may want to replace the unit anyway. We have the movement brand new with the new style balance for less than the cost of a cleaning. Your clock movement has lasted you 25 years or more. In theory the new unit should last more than this with the improved aspects.
The new style
The units offered on this page all have the new and improved balance assemblies. Despite the change on the balance, these units are a direct fit and will install in the clock case the exact same way as the old unit. If the numbers match from the old unit to the numbers offered on this page, than the movement will be the exact same. It will be the same as it is now but brand new and with the improved balance.
The improved upon balance units have a different kind of hairspring (Horizontal). It will also have a screw to regulate it rather than a slider arm. The regulator screw is on the back of the movement near the balance. There is a + and - sign next to it meaning fast or slow. If the clock needs to be faster to keep time then the screw would be turned to the plus and opposite for slowing time.
Hermle clock 341 - 340 movement
Hermle clock 341 - 340 movement is such a popular little movement, so many sold, and for good reasons. It is compact and versatile, hard working and cost efficient. The movement will work 20 or 30 years night and day without much complaint.
Can fit into tight places, it can come in either a pendulum version or a balance wheel instead. The advantage of a balance wheel is there is no pendulum to put in beat, you can move it without readjusting the beat. Also with a balance wheel you never have to care if its level or not. The pendulum unit advantage is that louder tick tock sound. If the pendulum is visible through the glass it is a nice hypnotic thing to look at and listen to.
A size 8 key winds up both the 340 and 341 clock movements, a single wind lasts 8 days. Ready for installation, the 340 and 341 Hermle clock movement series comes oiled and ready to go. Sold as the movement itself with its hand nut and hammers. If a pendulum unit, it will come with its suspension spring and leader. Already oiled Hermle 340 - 341 clock movement comes ready for installation.
Westminster progressively playing each quarter hour, and the full song on the top of the hour. This is followed by the striking out of whatever the hour is. The hammer location on these units are on the bottom, with 5 hammer heads that strike chime rods. This aspect does not vary on these units, they are all consistent with the 5 hammer below attribute on all 340 and 341 movements.
- A fraction of the price of an overhaul
- Should last 25-30 years, an overhaul would not
- Instructions and expert support
- Hermle Clock Movement of Germany
About Hermle Clock Movements
Hermle clock movements are among the finest movements made in the modern times. The German made Hermle units typically work night and day for 30 years without much complaint. To go and get it overhauled like you normally would with any clock after a long time, it is found that is cost is high. This is for good reason as it can be a large task to restore it. But as you see, since its a modern day unit (Post War German) it can be available new for a very good price. So what happens is you get a new movement instead of a fixed up old one, you get it in 3 days instead of 6 months. You will save hundreds of dollars doing it also.
All the Hermle clock movements we offer is the best grade. In other words there are a couple styles some units have that are not as good as others. There are various movements that have more than one grade. Some units can have plastic for the hour hand tube and the next wheel down, instead the better brass. Meanwhile the number is the same for both grades. In other words there is the economy grade and there is the full grade, on some movement series. To get the movement from someone besides clockworks.com, you may not know what one you will get. Please know that Clockworks.com will only ship the best grade Hermle clock movement available, every time.
What you will get
Each one of the these fine Hermle clock movements come already oiled, will come with the hand nut also. If it is a pendulum style clock, it will come with the suspension spring and the pendulum hanger (leader). If its a weight driven clock, it will come with new chains or cables and with pulleys. So this will be the movement with its hammer assemble on. This is the complete movement that comes out after you get in your hands and walk away from the clock with it. No weights, pendulum, chime block, hands, dial all this you have already usually.
When you place your online order you will get a receipt emailed to you providing you put in the correct email address. If you do not get a receipt, please check your spam folder for the receipt from us. On the receipt is the link to click for the instructions for your product. The Hermle clock movement ships from Huntington, MA 01050 USA and sometimes from other locations also. The movements go out the next business day unless there is something we have to do to it such as a regear. The Hermle Clock Movements ship out UPS or sometimes FedEx. Never USPS unless there is a special request or you are an international customer.
Hermle Clock Movement Identification
Identification is done with the numbers on the back plate of the Hermle clock movement. Not from the manual that came with the clock, and not off the wood case. On the back plate of the clock movement you will see the numbers such as 451-050 94cm. These numbers let us know everything we need to know about the mechanical clock movement itself. This tells us if its weight driven, the plate size, and every other aspect of the movement.
When the numbers are matched, the new movement can be ordered. The new movement will be the exact same and not a knock off. Therefore all of your existing clock components will fit just the same a it did.
As discussed in a different section, the new movement is the way to go without a doubt. The new unit is a fraction of the price of an overhaul on the old one. You will have the clock back and running in the shortest time instead of waiting months and sometimes years for the overhaul to be completed. The movement will last another 30 years without much complaint, you cant say this about an old one that was restored.
Mechanical Clock Movement Issues
Mechanical Clock Movement Issues arise after years go by because the oil turns solid. With age, the mechanical clock movement's oil solidifies and becomes black and sticky. By the time 20 or 30 years go by, the oil has solidified and is creating wear on the movements brass plates.
If you look at your old clock movement, you will see holes in the brass plates where there are small pivot arbors sticking into these holes. These pivots are what the gears of the clock ride upon and as the pivots spin in the solidified oil, this makes the holes oblong instead of round. With the pivot holes oblong, the holes are pinching the pivots and creating resistance in the gear train. With the solidified oil and the pinched pivots, the clock will eventually stop working or chiming.
This wear takes place in the holes that are in the brass plates and is hard to identify sometimes. These holes in the brass plates become oblong instead of round and this pinches the pivot arbor going into it. Between this, and the solid oil, the clock ceases to function. To have this repaired is an expensive and long process. To have a mechanical movement serviced can cost two times as much or even three times the amount of the new one.
New Mechanical Movement Reasons
New Mechanical Movement Reasons to get the new one when we can just repair the old one? The reason is because it is still in production. Its still made in mass production in Germany, so this means its available for a lot less cost. Even the best repair job from the best repair professional, cannot make it as good as a new one.
New Mechanical Movement Reasons are because it can ship from USA the same day you order it. The time it takes you to get you're clock up and running is very short. A repair can usually take months and then you are still left with a used overhauled movement rather than a new one.
When you receive a new movement it is the same as you're old movement. All clock component parts such as weights will fit on to the new movement. The cost of a new movement is less and when it's installed it should last another 25-30 years without intense service. Over the years, if there is improvements that can be done on the movement, the factory updates them. We here at Clockworks offer only the highest grade mechanical clock movements and they come with a 2 year warranty.
The new unit will cost less and ship now. It will be far better in every way than getting the old one restored. You will have a new movement in days instead of the used one back in months.
Hermle Clock Movement Aliases
Hermle produced clock movements and used aliases for names in a way. The movement could be stamped many names but really it will be made by Hermle. Some companies bought so many they were able to get there name on the movement instead of Hermle. The following is only a partial list of names that could be on the clock movement.
The best disguised Aliases
Seth Thomas also Mason and Sullivan had not only there name, also there own internal numbering system. This was stamped on the movement, instead of the Hermle number. Since it is not a Hermle number, the number would need to be converted to what the real number is . This is done with the Mason and Sullivan chart, or the Seth Thomas conversion Chart. However the Seth Thomas chart is not very accurate, please see instructions on that page.
It is best to replace the clock movement if either of these names are on the movement automatically. You do not have to think and decide if repair is better, the answer is a simple no. These companies went out of business long ago and the unit is over its lifetime. The lifetime is 25 - 30 years before it needs an overhaul or replacement. Both ST and Mason Sullivan on the movement would indicate the clock is about 40 years old.
The other Hermle Clock Movement Aliases are easy
Hermle Clock Movement Aliases on other clocks used only their name, and not there own internal numbering system on the Hermle movements. So basically if the clock is of post war German origin you can just look at the number and forget the name. The numbers will indicate what movement it is. If it is a Hermle movement its 3 or 4 digits followed by a hyphen, and then 3 more digits. Like this 1161-853 or 340-020 or 351-060. If the numbers look like this it is made by Hermle.
Other Names Used
- S. Larose
- Mason & Sullivan
- Tally Industries
- Seth Thomas
- Howard Miller
Hermle Number Examples
Below are some typical examples of the Hermle clock movement numbering system. If your clock numbers are similar to this, its made by Hermle.
- 451-050 94cm
- 451-030 66cm
- 341-020 45cm
- 1151-050 114cm
- 451-053 94cm
- 1161-853 114cm
- 141-070 45cm
- 351-050 55cm
- 1161-850 94cm
- 241-070 94cm
340 - 341 Hermle Clock Movement
The numbers on the back plate of the 340 - 341 Hermle Clock Movement is everything one needs to get a replacement. If the numbers match then the movement will match.
If the clock is a pendulum unit, be sure to select the proper CM length that matches the old unit. For example it may say 341-020 45cm on the Hermle Clock Movement. If your clock movement has an A at the end such as 341-020A, just ignore the A.
- Pendulum Unit
- Two Hand shaft lengths
- Plate size 100 x 100mm
- Spring Driven
- Factory Oiled
- Next Day Shipping
- A fraction of the price of an overhaul
- Should last 25-30 years, an overhaul would not
- Instructions and expert support
- 340 - 341 Hermle Clock Movement
Hermle Clock Movement Directory, Number starts with.....
Hermle Clock Movement Directory Explanation
Hermle Clock Movement Directory is to get to the correct page that contains your clock movement. The Hermle mechanical movements have numbers on the back plate starting with the below few numbers, and then followed by a - dash and then some more numbers. Examples = 340-020 131-070 1161-853 351-020 and similar. So if your clock says something like 1161-053 you would drop the second half and click the 1161 button below. This will bring you to the page where 1161-053 and the rest of the 1161 series resides.
If Not Listed
If your Hermle movement is not found on these pages we may still have it as a conversion or we maybe able to create it out of what exists. Please email your movement number or a picture of the back plate to [email protected] If your movement numbers do not look like the Hermle movement numbers as described it maybe made by someone else. The mechanical movement identification page will assist you with determining who made the clock. This is for post WW2 modern mechanical clock movements made in Germany only however.