Speedmaster 57 Co-Axial 331.50.42.51 Reference 331.
Speedmaster 57 Co-Axial Yellow Gold / Silver / Bracelet
Overview
The Omega Speedmaster 57 Co-Axial 331.50.42.51 has a 41.5 mm case. The movement is the self-winding Omega calibre 9301, with a 60 hour power reserve. Water resistance is 100 metres. This model is listed with 3 references, varying in dial colour (silver and yellow), case material and bracelet.
- Case diameter
- 41.5 mm
- 16.17 mm thick
- Movement
- Calibre 9301
- Water resistance
- 100 m
- Power reserve
- 60 h
Specifications
Specifications from Omega and WatchBase. Last checked . SourcesCase
- Diameter
- 41.5 mm
- Thickness
- 16.17 mm
- Lug width
- 20 mm
- Material
- Yellow gold
- Crystal
- Sapphire
- Water resistance
- 100 m
- Weight
- 239 g
Dial
- Colour
- Silver
Movement
- Calibre
- Omega 9301
- Type
- Automatic
- Power reserve
- 60 h
Bracelet or strap
- Bracelet or strap
- Bracelet: Yellow gold
- Clasp
- Butterfly clasp
Not yet recorded: lug-to-lug, case back, shape, indexes, hands, functions, years.
Other versions of the Speedmaster 57 Co-Axial 331.50.42.51
The Omega Speedmaster 57 Co-Axial 331.50.42.51 covers 3 references, with a 41.5 mm case. All use the Omega calibre 9301.
Compare all 3 references in a table
| Reference | Dial | Case | Size | Produced |
|---|---|---|---|---|
| 331.50.42.51.02.001 | Silver | Yellow gold | 41.5 mm | – |
| 331.50.42.51.02.002 | Silver | Red gold | 41.5 mm | – |
| 331.50.42.51.08.001 | Yellow | Yellow gold | 41.5 mm | – |
Speedmaster 57 Co-Axial 331.50.42.51 questions
What size is the Omega Speedmaster 57 Co-Axial 331.50.42.51?
The Omega Speedmaster 57 Co-Axial 331.50.42.51 has a 41.5 mm case.
What movement does the Omega Speedmaster 57 Co-Axial 331.50.42.51 use?
It uses the Omega calibre 9301.
What is the Omega Speedmaster 57 Co-Axial 331.50.42.51 case made of?
Its references have cases in yellow gold and red gold.
Is the Omega Speedmaster 57 Co-Axial 331.50.42.51 water resistant?
It is rated to 100 m.
How many Omega Speedmaster 57 Co-Axial 331.50.42.51 references are there?
Our database lists 3 references.
About the Omega Speedmaster '57
The Speedmaster '57 takes its design from the first Speedmaster, reference CK2915 of 1957, with broad arrow hands and straight lugs. Omega introduced an automatic version using the calibre 9300 in 2013. In 2022 Omega launched a new generation in a 40.5 mm steel case, 12.99 mm thick, driven by the manual winding calibre 9906. That movement is a Co-Axial Master Chronometer chronograph with a column wheel, vertical clutch and 60 hour power reserve. The modern watch is a vintage inspired take on the original rather than an exact copy.
