Omega Speedmaster 378.0801

Omega, Speedmaster 125th anniversary, ref. 378.0801/178.0002, steel chronograph wristwatch, circa 1973 Movement: cal. 1040, automatic, 22 jewels, n°35075887 Case: n°E348, width. 42mm Complication: 1 counter chronograph with seconds and minutes, graduation for the tachymeter, 24H indication, subsidiary counter for the seconds Signature: dial, movement, case, bracelet