Fred400
·After a long search, get a Zenith wrist alarm. As described in the Rössler-book on page130. About 1920. Silver case, 46 mm diameter. Enamel dial (unfortunately slightly damaged).
And photos of a Chronometer 2000 with a very easy movement. Calibre 135-1-0. Serial number 6833969. Probably around 1969.
And photos of a Chronometer 2000 with a very easy movement. Calibre 135-1-0. Serial number 6833969. Probably around 1969.