331.20.42.51.02.001Ref

The Speedmaster 57 is a modern tribute to Omega's first-generation Speedmasters, featuring straight lugs and a bezel with the tachymeter scale engraved. These features were present on early versions of the iconic chronograph, whereas later models adopted the swirling 'lyre' lugs and a separate inlay bezel still in use. Reference 331.20.42.51.02.001 has a case and bracelet in yellow gold and stainless steel, and a silver dial.