Omega
Seamaster Railmaster
Ref. 220.12.40.20.01.001
The Omega Seamaster Railmaster is a robust and historically significant timepiece, originally introduced in 1957 for professionals exposed to magnetic fields. This modern iteration features Omega's Co-Axial Master Chronometer movement, offering superior anti-magnetic resistance and precision. Its understated design, 40mm stainless steel case, and versatile strap options make it a collectible choice for enthusiasts.
crystalSapphire crystal with anti-reflective coating on both sides
braceletBlack textile strap (coated nylon fabric)
movementOmega Calibre 8806, automatic, 55-hour power reserve, Co-Axial escapement, Master Chronometer certified, anti-magnetic up to 15,000 Gauss
lug width20mm
dial colorBlack
case diameter40mm
case materialStainless steel
water resistance150m
year2022
A registered Omega 220.12.40.20.01.001 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.