Omega. A fine stainless steel chronograph and bracelet Model: Speedmaster Professional
Reference: S 105 012 – 65
Date: Circa 1966
Movement: 17-jewel Cal. 321 manual winding chronograph, no. 24011235
Dial: Black, fifth seconds ring, luminous baton numerals, subsidiary dials for 30-minute and 12-hour registers, white hands with luminous fill
Case: Tonneau with chamfered lugs, DO90 tachymeter bezel, screw down back
Strap/Bracelet: Steel, graduated oblong links, deployant clasp 1506, date code 4-66
Signed: Case, dial movement and bracelet
Size: 39.5mm
