Seamaster DIVER 300M CO‑AXIAL MASTER CHRONOMETER 42 MM

This 42 mm Seamaster Diver 300M has a case and bracelet in stainless steel. The ceramic dial, in OMEGA’s own Summer Blue, is PVD-treated and has a gradient finish to reflect the watch’s level of water resistance. It also includes the 300M’s famous wave pattern.

A blue ceramic bezel with a Summer Blue enamel (Grand feu) diving scale encircles the dial, which has rhodium-plated skeleton hands and raised indexes, filled with a unique light blue Super-LumiNova.

Turning the watch over reveals a stamped commemorative Seamaster logo depicting a trident-bearing Poseidon and two seahorses: OMEGA’s 1956 original and the brand’s current design. Behind which sits OMEGA’s Co-Axial Master Chronometer calibre 8800, certified at the industry’s highest level by the Swiss Federal Institute of Metrology (METAS).

FEATURES：
Anti‑magnetic

Chronometer

Date

Helium escape valve

Master Chronometer Certified

Screw-in crown

Unidirectional rotating bezel

CASE：
Between lugs: 20mm
Lug‑to‑lug: 49.9 mm
Thickness: 13.6 mm
Case diameter: 42mm
Case: Steel
Water resistance: 30 bar (300 meters / 1000 feet)
Total product weight (approx.): 201 g

DIAL AND CRYSTAL：
Dial color: Blue
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