OMEGA Seamaster 300 Co-Axial Master Chronometer 41mm Watch alt-text-ai this timepiece includes a transparent

this timepiece includes a transparent sapphire crystal caseback

The dial presents a small seconds sub-dial

with a date window at 3 o'clock

The original OMEGA Railmaster of 1957 was a simple

OMEGA Seamaster 300 Co-Axial Master Chronometer 41mm Watch alt-text-ai this timepiece includes a transparentOMEGA first introduced the Seamaster 300 in 1957 designed especially for divers and professionals who worked underwater. More than 60 years later, the timepiece has been completely upgraded with an enhanced form that is ready for a new generation of adventurers. This 41 mm stainless steel model includes a blue dial and a blue oxalic anodized aluminium bezel with its diving scale filled with vintage Super LumiNova. The recessed hour markers and open