Omega Seamaster Professional Diver 300M 42 MM Steel On Steel Strap Blue Dial Watch 210.30.42.20.03.001

The Seamaster Professional Diver 300M has been in production since 1993 and remains Omega's definitive dive watch. This 42mm reference is stainless steel with a blue ceramic bezel and white enamel diving scale, and a matching polished blue ceramic dial with laser-engraved waves and a date at 6 o'clock. This is the version on the stainless steel bracelet.

Skeleton hands and raised indexes are rhodium-plated and filled with white Super-LumiNova. The helium escape valve has a conical design. It runs the Co-Axial Master Chronometer Calibre 8800, certified by METAS, visible through the wave-edged sapphire caseback.

Key facts
Brand: Omega
Collection: Seamaster Diver 300M
Reference: 210.30.42.20.03.001 (also listed as 21030422003001)
Movement: Co-Axial Master Chronometer Calibre 8800, METAS certified
Case material: Stainless steel
Case size: 42 mm
Dial: Polished blue ceramic with laser-engraved waves, date at 6
Bezel: Blue ceramic with white enamel diving scale
Bracelet: Stainless steel
Water resistance: 300 m
Caseback: Wave-edged sapphire

Frequently Asked Questions

Q: How does this differ from the rubber strap version?
A: The watch is identical apart from the bracelet. The "30" segment in the reference denotes the steel bracelet, while "32" denotes the rubber strap.

Q: What does Master Chronometer mean?
A: The movement is certified by METAS to 0 to +5 seconds per day and resistance to magnetic fields of 15,000 gauss.

Q: Is this watch new and authentic?
A: Yes. Brand new and 100% authentic, verified against Omega's own product data, backed by our money-back guarantee.

Q: How is it shipped?
A: Worldwide by DHL Express from Dubai, fully insured, with tracking details provided.