Description

Details

Omega - ST 186.004 Alaska

Speedmaster Professional Moonwatch Alaska Project IV

Brand:	Omega
Family:	Speedmaster Automatic / Quartz
Reference:	ST 186.004 Alaska
Name:	Speedmaster Professional Moonwatch Alaska Project IV
Produced:	1979/1 - 1973/7
Limited:	Yes, 20 units

Case

Material:	Stainless Steel
Glass:	Plexi
Back:	Closed
Shape:	Round
Diameter:	38.00 mm
Height:	11.00 mm
Lug Width:	20.00 mm
W/R:	50.00 m

Dial

Nickname:	Alaska Project
Color:	White
Indexes:	Stick / Dot
Hands:	Stick

Description

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 186.004of the era, it is fitted with tritium strips behind the display to light it up.

Movement

Omega caliber 1620 is quartz movement used in the Speedmaster Quartz.Advanced for its day, it featured a full calendar, and a split seconds chronograph. It is powered by two batteries (SSIH 9909 / Vartachron 547).

A special version with a screen backlit by tritium strips was used in the Speedmaster Alaska IV prototype watches.