Helvetia (General watch company) has lot’s of history and was responsible for the creation of it’s more known brand Omega. Helvetia made a lot of wonderful in-house movements well into the 1960’s and is in my opinion one of the most underrated vintage brands today.

Helvetia calibre 800C. Serviced by me in 2016. Good condition. Case is 33mm w/o crown. Asking price £420. Click on image for more photos.