top of page

The OMEGA Seamaster Diver 300M Co‑Axial Master Chronometer 42mm is a timepiece that continues the rich legacy of the Seamaster Professional Diver 300M collection, which has been cherished since 1993. It seamlessly blends oceanic heritage with OMEGA's cutting-edge innovation and design.


This 42mm watch is meticulously crafted from stainless steel and 18K Sedna™ gold, offering both durability and elegance. Its black ceramic bezel is adorned with a Ceragold™ diving scale for a touch of luxury. The polished black ceramic dial features finely laser-engraved waves, and a practical date window is positioned at 6 o'clock.


The watch's skeleton hands and raised indexes are fashioned from 18K Sedna™ gold and generously filled with white Super-LumiNova for optimal visibility. Notably, the helium escape valve boasts a distinctive conical design. This remarkable timepiece is secured on a comfortable black rubber strap and is powered by the advanced OMEGA Master Chronometer Calibre 8800. The movement is visible through the sapphire-crystal case back, which features a wave-edged design.


Since 2012, OMEGA has been using its exclusive 18K SednaTM Gold, a unique rose gold alloy known for its fiery hue and exceptional resistance to color fading and loss of luster over time. Its composition includes copper and palladium, ensuring both vibrant color and long-lasting brilliance. You can now acquire this exceptional watch in immaculate condition at MVS Watches, complete with free UK-wide shipping, ensuring it reaches you in pristine condition.

OMEGA Seamaster 300 Steel 18K Sedna Gold -

Out of Stock
  • OMEGA Seamaster 300


    • CONDITION: Immaculate condition with full set
    • GUARANTEE: Sep 2022
    • MATERIAL: Stainless steel and 18K Sedna™ gold
    • DIAL: Black
    • BRACELET: Black rubber strap
    • DIAMETER: 42mm
    • BEZEL: Ceramic
    • CROWN: Screwdown crown
    • CRYSTAL: Domed scratch-resistant sapphire with double sided anti-reflective treatment
    • WATER RESISTANCE: Water resistant to 300m
    • MOVEMENT: OMEGA Co-Axial Master Chronometer Calibre 8800
    • ACCURACY: 0/+5 seconds per day
    • POWER RESERVE: 55 hours
    • CLASP: Pin buckle

Alternative Timepieces