OMEGA Seamaster Diver 300M

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).

Between lugs Open Case Measurement
20 mm
Lug‑to‑lug Open Case Measurement
49.90 mm
Thickness Open Case Measurement
13.56 mm
Case diameter Open Case Measurement
42 mm
Case
Steel
Dial color
Blue
Crystal
Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance
30 bar (300 metres / 1000 feet)
Total product weight (approx.)
201 g
Caliber
Omega 8800
Movement Type
Self winding
Power reserve
55 hours