Additional information
| 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.
| Type: | Quartz |
|---|---|
| Brand: | Omega |
| Caliber: | 1620 |
| Display: | Digital |
| Diameter: | 29.00 mm |
| Time: | Hours, Minutes, Small Seconds |
| Date: | Date, Day |
| Chronograph: | Chronograph |
More watches using the Omega 1620 caliber
