I realised that your watch is the one on Ebay that I have the serial and details for and I can see that it is the same as the late watch on the Pilot's watch page linked to above dated to about 1959/60. If you still want to send pictures of your other watch please contact me through the contact page on the site as I'd rather not post my email here. https://www.helvetiahistory.co.uk/contact

Thanks. Carl.