Glycine, an stainless steel aviator's automatic calendar wristwatch, 1960's,

细节
Glycine, an stainless steel aviator's automatic calendar wristwatch, 1960's,
black dial signed Glycine Airman, Automatic, 24-hour numerals, date aperture, sweep centre seconds, self-winding movement, waterproof case with revolving 24-hour bezel, bezel locking screw in the band, diameter 36mm.