Seamaster Diver 300M Co‑Axial Master Chronometer 42 mm

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 green 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 an adjustable stainless steel bracelet with extra diver extension, and is driven by the OMEGA Master Chronometer Calibre 8800, which can be seen through the sapphire-crystal on the wave-edged caseback.

Features
Anti-magnetic
Chronometer
Date
Helium escape valve
Master Chronometer Certified
Screw-in crown
Transparent caseback
Unidirectional rotating bezel

Case
Between lugs: 20 mm
Lug‑to‑lug: 49.9 mm
Thickness: 13.6 mm
Case diameter: 42 mm
Case: Steel
Water resistance: 30 bar (300 metres / 1000 feet)
Total product weight (approx.): 198 g
1. Between lugs
2. Lug-to-lug
3. Case diameter
4. Thickness

Dial and Crystal
Dial colour: Green
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides

Bracelet
Material: Steel
Type of Clasp: Foldover clasp with comfort setting and diver extension

Reference
210.30.42.20.10.001