German Seth Thomas and Mason Sullivan did not make their own movements. You would need to follow the link and find out the true manufacturer. CM lengths on German movements are the pendulum length from the suspension post all the way down to the bottom of the pendulum. This includes the suspension spring, the leader that hangs on it and the pendulum itself from tip to tip. This means the actual pendulum length itself will be much shorter then this measurement. Below are just a few examples of actual numbers that exist so you can see the pattern and determine who made your clock movement. There are many clock case makers that do not make their own movements.
MOVEMENT # EXAMPLES + WHO MADE IT
- HERMLE
- Hermle
- 131-020 35cm
- 141-040 94cm
- 340-020
- 351-830 66cm
- 1051-030 55cm
- 451-050 94cm
- 1161-853 114cm
- GO
- KIENINGER
- Kieninger
- 75 R 116cm
- 83 K 93cm
- 85 P 65cm
- 78 K 116cm
- 84 SK 116cm
- 78 J 65cm
- 85 HK 116cm
- GO
- JAUCH
- Jauch
- 77
- 78
- PL110
- PL(anything)
- PL61cm
- 61
- PL116cm
- GO
- URGOS
- Urgos
- UW32342
- UW03022
- UW32/1
- UW32001
- UM3/15
- UW32/45
- UW03083
- GO
- SETH THOMAS
- (Hermle/Kieninger)
- A205-000
- A401-001
- A403-007
- A403-020
- A451-002
- A429-705
- A497-218
- GO
- MASON
- (Hermle/Kieninger)
- 3200X
- 3224X
- 3261X
- 3286X
- 3334X
- 3370X
- 3600X
- GO
Bob Only
This is for the pendulum bob only for a wood stick pendulum. Measurement is from one side to the other.
Hermle
Kieninger
Urgos
Jauch
Mixed Bobs
We offer the above bobs with various patterns. These are for mantle movements with the F-S regulator that you can adjust the timing.
Item # PD10
$9
Adjustable Bob
This pendulum bob is threaded on the bottom with a rating nut for easy timing of the clock. This can be used on mantle clocks as well as certain wall clocks such as a banjo. Measurement is the diameter of the bob.
Item # PD5
$13
Grape Leaf
Gold tone brass pendulum with leaf decorations on the top of the pendulum bob. This pendulum measures seven inches in length and has a 2 1/2 inch diameter bob that weighs 3.5 ounces. Used with some modern wall clocks and 31 day clocks.
Item #PD28
$20
Adjustable Pendulum
Bob is 35mm in diameter and weighs two ounces.
Item #PD22
$22
To get the CM length manually, measure from the top of the movement all the way down to the bottom of the pendulum rating nut threads. This measurement will include the suspension spring, the leader, and the pendulum tip to tip.
One Inch = 2.54 CM
The below chart is to get the approximate pendulum length tip to tip. The smaller the bob, the shorter the pendulum will be.
CM length / Aproximate pendulum length tip to tip
