Omega Seamaster Diver 300M CO‑Axial Master Chronometer 42 mm Green Dial
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The Omega Seamaster Diver 300M CO‑Axial Master Chronometer 42 mm Green Dial (ref. 210.30.42.20.10.001) is a men's dive watch with a 42 mm round case in stainless steel. The dial is protected by sapphire crystal.
It is powered by the self-winding mechanical calibre 8800 with a power reserve of 55 hours. Functions: Date. Water-resistant to 300 m. The watch is fitted with a metal bracelet.
This example is unworn, and comes with the original box and papers.
Co-Axial Master Chronometer calibre 8800 is a self-winding movement with a Co-Axial escapement and silicon balance spring, resistant to magnetic fields of 15,000 gauss. It has a power reserve of 55 hours.
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Omega was founded in 1848 by Louis Brandt in La Chaux-de-Fonds and is now based in Biel/Bienne, Switzerland. The brand is known for its long association with timekeeping at the Olympic Games, for the Speedmaster chronograph worn on the Moon during the Apollo missions, and for the Co-Axial escapement and Master Chronometer certification of its movements.
The main collections are the Speedmaster, including the Moonwatch and anniversary editions; the Seamaster family, with the Diver 300M, Planet Ocean and Aqua Terra; the Constellation; and the De Ville dress watches. Limited editions and Museum Collection pieces also appear regularly.
Free delivery across the UAE in 2–3 business days, insured shipping worldwide. Returns and any issues with your order — see Shipping & Returns.
WATCH LAB guarantees the authenticity of every item we sell. Customised pieces are clearly identified in the listing, and any aftermarket modifications are described separately.
Our prices are based on current market data and auction results, reviewed by our experts.
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