The OMEGA Seamaster Diver 300M Sedna Gold Chronograph 44mm (Ref. 210.20.44.51.01.001) elevates the legendary Seamaster diving chronograph through stainless steel and 18K Sedna gold construction, OMEGA’s proprietary rose gold alloy that maintains its warm colour tone over time without fading. The polished black ceramic bezel with Ceragold diving scale and matching ceramic pushers create sophisticated contrast against the Sedna gold elements whilst the laser-engraved wave dial with 18K Sedna gold subdial hands demonstrates consistent precious metal detailing throughout.

At 44mm with 17.20mm thickness through steel and Sedna gold construction, this provides commanding presence whilst the black ceramic dial with laser-engraved waves and date window at 6 o’clock maintains authentic Seamaster character. The steel and Sedna gold bracelet with foldover clasp and diver extension accommodates wetsuit wear whilst the wave-edged sapphire caseback reveals the decorated movement.

The Master Chronometer Calibre 9900 delivers 60-hour power reserve with 15,000 gauss magnetic resistance through METAS certification whilst the column wheel chronograph construction with two barrels mounted in series provides precise timing functionality including 12-hour and 60-minute recorders. The silicon balance spring, time zone function, and Co-Axial escapement complete a comprehensive movement specification.

The domed sapphire crystal with anti-reflective treatment ensures optimal clarity whilst the 300m water resistance and helium escape valve validate serious diving capability. The screw-in crown and unidirectional rotating bezel maintain full professional instrument credentials. OMEGA’s Sedna gold being resistant to colour change over time is the detail that separates this from a standard two-tone, making it a more considered choice for those who want precious metal in a working diver’s chronograph.