Omega Speedmaster Mark 4.5 ST 176.0012

Omega Speedmaster Mark 4.5 Ref. ST 176.0012

The Omega Speedmaster Mark 4.5 ST 176.0012 has a 41 mm stainless steel case, and is water resistant to 60 metres.

Ref. ST 176.0012 was launched in 1975. This Speedmaster is nicknamed 'Mark 4.5' as it pairs the case of the Mark IV with the movement of the Mark V.

Diameter: 41 mm
Water resistance: 60 m
Case: Stainless Steel
Released: 1975
Movement: Omega caliber 1045

Specifications

Case and dimensions

Case diameter: 41 mm
Case shape: Cushion
Case material: Stainless Steel
Crystal: Mineral
Case back: Closed
Water resistance: 60 m

Dial

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

Movement

Calibre: Omega caliber 1045
Movement maker: Omega
Movement type: Automatic
Display: Analog
Power reserve: 48 h
Frequency: 28800 vph
Jewels: 17
Movement diameter: 31 mm
Complications: Additional 24 Hour Hand (fixed), Chronograph, Date, Day, Hours, Minutes and Small Seconds

Production

Release year: 1975
Discontinued: 1986

Marketplace

No listings for this model yet.

Other Speedmaster (Non-Moonwatch) references

12

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