331.12.42.51.01.001Ref

The Speedmaster 57 is a modern homage to Omega's earliest Speedmasters, with a straight-lug case and a bezel with the tachymeter scale engraved. These same features were shared with early versions of the iconic chronograph, while later models have the swirling 'lyre' lugs and a separate inlay bezel that are still in use. Reference 331.12.42.51.01.001 has a stainless steel case, black dial, and a calf leather strap.