Omega Speedmaster 125 Ref. ST 378.0801

The Omega Speedmaster 125 ST 378.0801 has a 42 mm stainless steel case, measures 15 mm thick, and is water resistant to 60 metres.

The Speedmaster 125 was introduced in 1973 in celebration of Omega's 125th anniversary. It is powered by caliber 1041, which is a chronometer-certified version of caliber 1040. Its chronometer certification made it the first automatic chronograph to be COSC certified. It is said that no mroe than 2000 pieces were made. Although not directly noticable when looking at the specs, the 125 features a rather massive case. The bracelet is of the 'bar' type - similar to that found on the later Seamaster 'Albatros'. The bracelet measures 26mm at the case and tapers down to 15.5mm at the clasp.

Diameter: 42 mm
Thickness: 15 mm
Water resistance: 60 m
Case: Stainless Steel
Released: 1973
Movement: Omega caliber 1041

Specifications

Case and dimensions

Case diameter: 42 mm
Thickness: 15 mm
Case shape: Round
Case material: Stainless Steel
Bezel: Pulsometer
Crystal: Plexi
Case back: Closed
Water resistance: 60 m

Dial

Dial colour: Black
Indexes: Stick / Dot
Hands: Arrow

Movement

Calibre: Omega caliber 1041
Movement maker: Omega
Movement type: Automatic
Display: Analog
Power reserve: 40 h
Jewels: 22
Movement diameter: 31 mm
Complications: Additional 24 Hour Hand (fixed), Chronograph, Chronometer, Date, Minutes and Small Seconds