Omega
Speedmaster 57 Co-Axial Chronograph
Ref. 331.20.42.51.02.001
The Omega Speedmaster '57 is a modern reinterpretation of the brand's first Speedmaster chronographs from the 1950s, featuring straight lugs and an engraved tachymeter bezel. This reference (331.20.42.51.02.001) stands out for its two-tone stainless steel and yellow gold case, silver dial, and Co-Axial chronometer movement with a 60-hour power reserve, blending vintage design cues with contemporary watchmaking technology.
crystalSapphire
braceletBracelet (material not specified)
movementOmega caliber 9300, automatic self-winding chronograph, column wheel, Co-Axial escapement, 60-hour power reserve, chronometer
functionsHours, minutes, small seconds, date, chronograph
lug width20.00 mm
dial colorSilver
case diameter41.50 mm
case materialStainless steel and yellow gold
water resistance100 m
year2013–2021
A registered Omega 331.20.42.51.02.001 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.