Omega · Speedmaster Moonwatch
Speedmaster Professional Moonwatch Sapphire Sandwich / Strap
Ref. 3873.50.31
The Omega Speedmaster Professional reference 3873.50.31 is often called the 'Sapphire Sandwich' due to its sapphire glasses both front and back. It was in production from 2002 to 2015. Reference 3573.50.00 is similar though fitted with a stainless steel bracelet.
- Release year
- 2002
- Case diameter
- 42 mm
- Lug width
- 20 mm
- Water resistance
- 50 m
- Case material
- Stainless Steel
- Crystal
- Sapphire
- Dial
- Black
- Movement
- Omega caliber 1863
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