Diver 300M Omega Co‑Axial Master Chronometer 43.5 mm
Black ceramic on rubber strap
Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.
The case of this 43.5 mm model is crafted from black ceramic and grade 5 titanium and includes a black ceramic bezel with a white enamel diving scale. The dial is also brushed black ceramic [ZrO2] and features laser-engraving to create raised waves.
The skeleton hands and raised indexes in PVD titanium are filled with white Super-LumiNova, while the helium escape valve has been given a conical design.
The watch is presented on an integrated black rubber strap with a polished-brushed black ceramic [ZrO2] buckle, and is driven by the OMEGA Master Chronometer Calibre 8806, which can be seen through the sapphire-crystal on the wave-edged caseback.
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
Helium escape valve 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.)
Screw-in crown Screw-in crown
Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
Transparent case back Transparent case backA transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch.
Unidirectional rotating bezel 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: 21 mm
- Bracelet: rubber strap
- Case: Black ceramic
- Case diameter: 43.5 mm
- Dial colour: Black
- Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
- Water resistance: 30 bar (300 metres / 1000 feet)
OMEGA is proud to include the Swiss Made mark on all of its watches. This simple wording guarantees a standard of quality that has been established over many centuries and is today a world-renowned symbol of excellence.
Every part of an OMEGA watch is made in Switzerland, which goes far beyond the industry’s required standard. This means that the manufacturing levels as well as the aesthetic and technical levels meet Switzerland’s highest demands.
On top of OMEGA’s own proven excellence, the Swiss Made mark provides customers with even more assurance and trust in the watch they wear on their wrist.
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.
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Free Delivery and Returns
All orders will be delivered to you within 2-5 working days, however deliveries to UK offshore addresses may take longer. Please allow additional processing time for orders placed on UK and Swiss Bank Holidays. At this time, we do not ship on Saturdays and Sundays.
We want you to enjoy your purchase as soon as possible, therefore we are pleased to offer complimentary express shipping on all orders. A signature will be required on delivery for all orders.
Our UK delivery service is operated via a DHL courier service. You will have access to track your delivery on the DHL website. For more information, please see our Delivery and Returns Policy.
Customer satisfaction is our goal. If you are not satisfied with your product, you may return any unworn, undamaged merchandise purchased online from www.omegawatches.com/en-gb/ by mail within 14 days of delivery for a refund of the purchase price, provided that the merchandise is original quality and has not been damaged
Returns are only applicable to orders made on www.omegawatches.com/en-gb/.
Returns are not accepted in the boutiques.
Any product that fails the quality inspection by Customer Service (e.g. scratches, worn or damaged items, missing components), will be returned to you and no refund will be issued.
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If you purchased as a guest, please request and manage your free return here.
If you return the product(s) to us directly without using our free returns service, please notify the OMEGA Team in advance at firstname.lastname@example.org. Our returns address is The Swatch Group (UK) Limited, Division OMEGA, Building 1000, The Royals Business Park, Dockside Road, London, E16 2QU, United Kingdom.
We will confirm the status of your return once the product has been received and the quality inspection is complete. For more information, please read our Delivery and Returns Policy.
A new look for your watch
Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.
Movement CALIBER OMEGA 8806
Power reserve 55 hours
Type Self winding
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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