Dating waltham movements

Dating waltham movements

Y, this is for Samuel Yeomans who was mention in my last post but one on a Harrison watch, where there is some background on this important figure in Coventry watchmaking.

The point is that Yeomans was in the business of manufacturing watches, he was not a case maker and it is very unlikely that someone would go to the company for a new case, and the company was unlikely to provide one, unless they had originally made the watch.

The table below lists the movements reported from this run.

Version 5 is identified by a change in the orientation of the screws holding down the balance jewels.

Various grades are found in this run and the Handwritten Records indicate some ATCs were made but none have been reported to date.

When it arrived my suspicions were confirmed as the movement has a very "slow train" running at 15,400 Vibrations Per Hour which was obsolete by the early 1890s.

Further research also showed that the trading name on the dial was in use from 1859 though 1894 and the address probably from after the late 1870s.

The Handwritten Records tell us that the first 10 movements from both of the first two runs are Vanguards but none have been recorded to date.

The table below reflects the breakdown according to the Handwritten Records.

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