We offer only the highest grade of Hermle Clock Movements available.
All Hermle clock movements come with a 2 year warrantee.

  • Less cost than a cleaning in most cases
  • Should last 25-30 years, a repair would not
  • Easy to install, we can help if needed
  • Ships same day as order


Find the model number on the back of the Hermle Clock Movement that match the numbers on this list. Usually there is three or four numbers followed with a dash (-) and then another set of three or four numbers. Then find the centimeter length, just below the model number, it looks something like this (66CM). This centimeter length represents the length of the pendulum measured from the suspension post down to the very bottom of the threads on the rating nut. (If the clock has one). Match these up to the list and you have a brand new Hermle movement that will replace your broken one.

Hermle 451 Series

Movements may vary from the Pictures

The matching of the Hermle movement number is what makes the difference, if the old movement number matches on the list, then you will get that exact same movement.


Many of the HERMLE MOVEMENTS have been improved upon by the factory over time. Some have bronzed bushings in key wear areas to increase the life of the movement, and on the non-pendulum units the balance has been improved upon for longer life and ease of timing.

WHO MADE IT Hermle Logo

Howard Miller, Welby, Ridgeway, Larose, Talley Industries, Mason & Sullivan, Seth Thomas, Buliva, Hamilton


Three or four numbers followed by a dash, then a CM length underneath it if there is a pendulum. They are all consistent as they always have the numbers, then a dash, then more numbers.
Basically if there is a dash in the movement number, and its all numbers in the beginning with no letters like "A", and the clock was made in Germany, its a Hermle unit for sure.


Excellent availability at this time, we stock all Hermle Clock Movements, with very few exceptions. Some special CM lengths maybe special order, if its not on the charts then it most likely will have to be made up special for an extra $20, this is a special order so please call it in. Hermle is the biggest movement producers in the world today. Not only do they have the most movements being made, but they also have the best part availability when you need a component such as a pendulum or a dial, or a complete clock kit. A Hermle Clock Movement generally last 22 to as much as 35 years. We usually get calls to replace units that were built in the early 80's or late 70's. If you look at the back plate of the movement you will see a couple numbers above all the other numbers. You will see such as a 77 or an 83 or so on. This is the date the movement was built.
Replacing these units rather than getting them cleaned and oiled is usually the smart way to go as it is factory improved, brand new, factory lubricated, easy to install, and it will cost less than a cleaning. Keep in mind however that there are different grades of the same movement number, some are cheaper and contain plastic parts. The Hermle units that we offer here at Clockworks are the best grade available with no plastic components for a very reasonable price.

Select the beginning of the Hermle clock movement number below

Dating Hermle clock movements

Prior to 1988, the year was two digits, 79 was produced in 1979. Starting in 1988, the year of manufacture was indicated by a letter.

  • A/1988
  • B/1989
  • C/1990
  • D/1991
  • E/1992
  • F/1993
  • G/1994
  • H/1995
  • J/1997
  • K/1998
  • L/1999
  • M/2000
  • N/2001
  • O/2002
  • P/2003
  • Q/2004
  • R/2005
  • S/2006
  • T/2007
  • U/2008
  • V/2009
  • W/2010
  • X/2011
  • Y/2012
  • Z/2013
  • AA/2014