Speedmaster Professional Moonphase Broad Arrow 3875.20.37 Reference 3875. 20. 37
Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Ivory
Overview
The Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37 has a 42 mm steel case with a white dial. It runs on the manual-winding Omega calibre 1866 with a 48 hour power reserve and is water resistant to 30 metres. The model has one reference, 3875.20.37. It is no longer in production.
- Case diameter
- 42 mm
- Movement
- Calibre 1866
- Water resistance
- 30 m
- Power reserve
- 48 h
Specifications
Specifications from Omega and WatchBase. Last checked . SourcesNot yet recorded: thickness, lug-to-lug, case back, shape, indexes, hands, functions, years.
Speedmaster Professional Moonphase Broad Arrow 3875.20.37 questions
What size is the Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37?
The Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37 has a 42 mm case.
What movement does the Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37 use?
It uses the Omega calibre 1866.
What is the Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37 case made of?
The case is steel.
Is the Omega Speedmaster Professional Moonphase Broad Arrow 3875.20.37 water resistant?
It is rated to 30 m.
About the Omega Speedmaster Moonwatch
Omega introduced the Speedmaster in 1957 as a sports and racing chronograph. The first model, the CK 2915, used the calibre 321 movement and carried its tachymeter scale on the bezel. Wally Schirra wore his own Speedmaster on the Mercury mission of October 1962, and in 1965 NASA qualified the watch for all manned space missions after a series of tests. It was worn on the lunar surface during Apollo 11 in July 1969. The current Moonwatch Professional has a 42mm asymmetrical case, a black step dial, a tachymeter bezel and the manual-winding Co-Axial calibre 3861, certified as a Master Chronometer by METAS.



