Naughty Mr Ehrhardt.

This is a 1910 series by Wm Ehrhardt branded "The British Watch Co" one of their trading names after 1921. They come up very infrequently and this was the first one that required some work on the winding and setting mechanism and what did I find?

Ehrhardt. had ripped off the design of the shifting sleeve setting mechanism from the Waltham 1899/1908 models. They are in fact identical and to fix this watch I used a small piece part from a Waltham.

Not that it did them much good as they stopped manufacturing not long after this example was made whilst Waltham continued making pocket watches until just after WWII and wrist watches until 1957.