Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.


This 42 mm model is crafted from stainless steel and includes a green ceramic bezel with a white enamel diving scale. The dial is also polished black ceramic and features laser-engraved waves and a date window at 6 o’clock.


The skeleton hands and raised indexes are rhodium-plated and are filled with white Super-LumiNova, while the helium escape valve has been given a conical design.

The watch is presented on a stainless steel bracelet with micro adjustable dive extension and is driven by the OMEGA Master Chronometer Calibre 8800, which can be seen through the sapphire-crystal on the wave-edged case back.


The watch is keeping good time with no deviations of note. All functions work as designed. This piece comes in excellent used condition. It will come as a complete set including white outer Omega box, new style wooden box with red travel case insert (very desirable), warranty card dated 6/26/2023, chronometer and pictogram cards, Omega manual, and serialized hang tag.

Enjoy this piece worry free with 4+ years remaining on the factory warranty.




Reference: 210.30.42.20.10.001

Calibre: Omega 8808

Power reserve: 55 hours

MSRP: $5600

FEATURES

  • Anti-magnetic
  • Date
  • Unidirectional rotating bezel
  • Master Chronometer Certified
  • Screw‑in crown
  • Chronometer
  • Helium escape valve
  • Transparent case back

TECHNICAL DATA

  • Buckle type: Deployment w/ micro adjust dive extension
  • Strap color: Green
  • Bracelet: Stainless
  • Between lugs: 20 mm
  • Case: Steel
  • Case diameter: 42 mm
  • Dial color: Green
  • Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
  • Water resistance: 30 bar (300 metres / 1000 feet)
  • Movement type: Self winding
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