Breadcrumb
Black ceramic on Rubber strap
Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. OMEGA’s 21st century models stay true to the original’s dive watch design, while introducing exciting new materials and movements.
This 43.50 mm model, cased in black ceramic [ZrO2] and Sedna™ gold, has a black ceramic dial with laser-ablated waves in positive relief. The polished Sedna™ gold indexes and facetted hands, filled with white Super-LumiNova, contrast beautifully with the black dial. Completing the look is an integrated black rubber strap with black ceramic buckle.
The polished-brushed oriented caseback with wave-edged design features OMEGA’s patented NAIAD LOCK. Powering the watch is OMEGA’s Co-Axial Master Chronometer Calibre 8806.
All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.
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 case back
A transparent case back - 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.
The advantages
of this watch
Self-winding movement with a Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free sprung-balance with silicon balance spring, automatic winding in both directions. Special luxury finish with rhodium-plated rotor and bridges with Geneva waves in arabesque.
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