Since 1993, the Seamaster Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s most advanced innovation and design.

This 42 mm model is crafted in stainless steel and includes a black oxalic anodized aluminium bezel ring with a diving scale in white Super-LumiNova.

Black aluminium is also used to create the dial, which is laser-engraved with the Diver’s iconic wave pattern. The skeletonized hands and indexes are rhodium plated and filled with white Super-LumiNova, while the other markings, including the OMEGA logo, are transferred in white.

The watch is presented on a brushed mesh bracelet with clasp, and is driven by the OMEGA Co-Axial Master Chronometer Calibre 8806, which can be seen through the sapphire-crystal caseback.

Features
Anti-magnetic: The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Chronometer: Label given to a watch which has been successfully tested by an accredited and independent laboratory in order to receive a certificate compliant with the chronometer ISO 3159 standard.
Helium escape valve: Decompression system which allows helium to escape from inside the watch when the watch is worn for professional use in pressure chambers. (Long-term underwater work, crude oil exploration, etc.)
Master Chronometer Certified: Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).
Screw-in crown: Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
Transparent caseback: A transparent caseback - frequently made of sapphire - makes it possible to see the movement inside the watch.
Unidirectional rotating bezel: A bezel which turns in only one direction. Particularly useful for divers who cannot accidentally rotate it in the wrong direction, which could cause them to miscalculate their dive times. A rotating bezel makes it easy to measure elapsed time.

Technical Data
Reference: 210.30.42.20.01.010
Between lugs: 20 mm
Lug‑to‑lug: 49.70 mm
Thickness: 13.80 mm
Case diameter: 42 mm
Case: Steel
Dial colour: Black
Crystal: Domed, scratch‑resistant sapphire crystal with anti‑reflective treatment inside
Water resistance: 30 bar (300 metres / 1000 feet)
Total product weight (approx.): 154 g
Calibre: Omega 8806
Movement type: Self winding
Power reserve: 55 hours

Bracelet
Material: Steel
Buckle type: Foldover clasp
Buckle material: Stainless steel