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4. 1620

Omega caliber 1620

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Brand:	Omega
Reference:	1620
Movement:	Quartz
Display:	Digital
Diameter:	29.00
Date:	Date, Day
Chronograph:	Chronograph
Hands:	Hours, Minutes, Small Seconds

1620 description

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.

All watches using the Omega 1620 movement:

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ST 186.004 Alaska Omega Speedmaster Professional Moonwatch Alaska Project IV