Omega Speedmaster Professional Moonwatch Alaska Project IV ST 186.004 Alaska

Omega Speedmaster Professional Moonwatch Alaska Project IV Ref. ST 186.004 Alaska

The Omega Speedmaster Professional Moonwatch Alaska Project IV ST 186.004 Alaska has a 38 mm stainless steel case, measures 11 mm thick, and is water resistant to 50 metres.

The Omega Speedmaster Professional Alaska Project IV is a series of 20 prototype watches created in 1979 for NASA, to be tested by Space Shuttle pilots. Based on the regular ST 186.004 of the era, it is fitted with tritium strips behind the display to light it up.

Diameter: 38 mm
Thickness: 11 mm
Water resistance: 50 m
Case: Stainless Steel
Released: 1979
Movement: Omega caliber 1620

Specifications

Case and dimensions

Case diameter: 38 mm
Thickness: 11 mm
Lug width: 20 mm
Case shape: Round
Case material: Stainless Steel
Crystal: Plexi
Case back: Closed
Water resistance: 50 m

Dial

Dial name: Alaska Project
Dial colour: White
Indexes: Stick / Dot
Hands: Stick

Movement

Calibre: Omega caliber 1620
Movement maker: Omega
Movement type: Quartz
Display: Digital
Movement diameter: 29 mm
Complications: Chronograph, Date, Day, Hours, Minutes and Small Seconds

Production

Release year: 1979
Discontinued: 1973
Limited edition: 20 pieces

Marketplace

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Other Speedmaster (Non-Moonwatch) references

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