Style Number: 331.12.42.51.01.002 Year: 2021 Model: Omega Speedmaster '57 Co-Axial Chronograph Case Material: Stainless Steel Band: Gray Canvas Strap Bezel: Stainless Steel Dial: Black Crystal: Sapphire Case Size: 41.5mm Includes: -Omega Box & Papers. Condition: Pre-owned - Excellent,Bezel Color: Silver,Movement: Mechanical (Automatic),Seller Warranty: Yes,Year Manufactured: 2020-Now,With Papers: Yes,Reference Number: 331.12.42.51.01.002, 33112425101002,Brand: OMEGA,Case Color: Silver,Department: Men,Caseback: Exhibition,Type: Wristwatch,Customized: No,Bezel Type: Tachymeter,Dial Color: Black,Watch Shape: Round,Model: OMEGA Speedmaster,Style: Luxury, Sport,With Original Box/Packaging: Yes,Case Size: 41.5 mm,Features: 12-Hour Dial, Chronograph, Sapphire Crystal, Swiss Made,With Manual/Booklet: Yes,Case Material: Stainless Steel,Country of Origin: Switzerland,Display: Analog