DETAILS
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).
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ANTI-MAGNETIC
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
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CHRONOMETER
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
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DATE
The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.
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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.)
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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).
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SCREW-IN CROWN
Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
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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.
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- Reference
- 210.30.42.20.03.003
- Between lugs Open Case Measurement Modal
- 20 mm
- Lug‑to‑lug Open Case Measurement Modal
- 49.9 mm
- Thickness Open Case Measurement Modal
- 13.6 mm
- Case diameter Open Case Measurement Modal
- 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
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- Material
- Steel
- Type of Clasp
- Foldover clasp with comfort setting and diver extension
