CaptainWinsor
·I promised to post when it arrived, so here it is! It looks quite a lot like @LouS first one, but the indices differs a bit. The movement serial preliminary suggest production year of 1958. It is 37mm both with and without crown;-) The condition is superb!
that is a beautiful piece. It may be earlier than ‘58 but if you really want to know, get an extract. The Heritage department told me that you can’t use serial numbers to date their pieces exactly. There must have been a batch of chronometers when yours was made. A close number xxxx403 was also one but in stainless.