43.5 mm, black ceramic on rubber strap
£126.28
Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. ’s 21st century models stay true to the original’s dive watch design, while introducing exciting new materials and movements.
On this 43.50 mm model, black ceramic [ZrO2] dominates. The case, bezel, wave-pattern dial, crown and helium escape valve, all in the same striking material, give the watch a very distinctive, uniform and sculptural look. To ensure visibility without affecting the overall aesthetic, has introduced anthracite Super-LumiNova to the diving scale, the black PVD indexes and skeleton hands – and dot at 12H.
Completing the look is an integrated black rubber strap with black ceramic buckle. Adding some light to the darkness is a window with a clear view of the movement. Visible through the sapphire-crystal on the wave-edged caseback is ’s Co-Axial Master Chronometer Calibre 8806.
- 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 undergone precision tests and received a certificate from an official body (COSC).
- 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.
- Between lugs Open Case Measurement Modal
- 21 mm
- Lug‑to‑lug Open Case Measurement Modal
- 51.5 mm
- Thickness Open Case Measurement Modal
- 14.5 mm
- Case diameter Open Case Measurement Modal
- 43.5 mm
- Case
- Black ceramic
- Dial color
- Black
- 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.)
- 114 g
- Caliber
- 8806
- Movement Type
- Self winding
- Power reserve
- 55 hours
- Strap color
- Black
- Strap type
- Rubber strap
- Strap surface
- Rubber
- Strap underside
- Rubber
- Buckle type
- Pin buckle
- Buckle material
- Ceramic
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