Seamaster Diver 300M Co‑Axial Master Chronometer Chronograph 44 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 44 mm chronograph model is crafted from 18K Sedna™ gold and includes a laser-ablated black ceramic bezel ring with a polished diving scale. The pushers are also polished black ceramic, as well as the dial, which features laser-engraved waves in a positive relief and a date window at 6 o’clock.

The subdial rings and hands are in 18K Sedna™ gold, while the central hands and indexes are 18K Sedna™ gold and filled with white Super-LumiNova.

The watch is presented on a rubber strap and is driven by the OMEGA Master Chronometer Calibre 9901, which can be seen through the sapphire-crystal on the wave-edged caseback.

Features
Anti-magnetic
Chronograph
Chronometer
Date
Helium escape valve
Master Chronometer Certified
Screw-in crown
Small seconds
Time zone function
Transparent caseback
Unidirectional rotating bezel

Case
Between lugs: 21 mm
Lug‑to‑lug: 52.8 mm
Thickness: 17.3 mm
Case diameter: 44 mm
Case: Sedna™ gold
Water resistance: 30 bar (300 metres / 1000 feet)
Total product weight (approx.): 189 g

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

Strap
Strap type: Rubber strap
Strap color: Black
Strap surface: Rubber
Strap underside: Rubber
Buckle type: Pin buckle
Buckle material: Sedna™ Gold

Reference
210.62.44.51.01.001