OMEGA Seamaster Diver 300m Co-Axial Master Chronometer 42mm O21022422003002
This 42 mm model is crafted from stainless steel and 18K Sedna™ gold, and includes a blue ceramic bezel with a Ceragold™ diving scale. The dial is also polished blue ceramic and features laser-engraved waves and a date window at 6 o’clock.
The skeleton hands and raised indexes are 18K Sedna™ gold and are filled with white Super-LumiNova, while the helium escape valve has been given a conical design. The watch is presented on a blue rubber strap and is driven by the OMEGA Master Chronometer Calibre 8800, which can be seen through the sapphire-crystal on the wave-edged caseback.
SEDNA™ GOLD
OMEGA has been using the exclusive 18K Sedna™ Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, Sedna™ Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.
STAINLESS STEEL
Stainless steel is certainly the most conventional of watchmaking materials for outer craftsmanship, and offers beauty, strength and affordability. OMEGA uses 316L stainless steel. Known for its corrosion-resistance and high lustre after polishing, this material is often the ideal choice for watches in both daily-use and high-stress situations such as diving and adventure.
CERAMIC
OMEGA has unrivalled expertise in the use of ceramics, dating back more than 10 years. Taking its origin from the Greek word "keramos", ceramic is an inorganic, non-metallic substance obtained by firing at high temperatures. It allows the creation of completely dense watch parts with exceptional mechanical properties. Ceramic is one of the most popular choices for customers when selecting their timepiece, thanks to its appealing colour range and specific properties, such as it being two times lighter than stainless steel, hardwearing, highly scratch-resistant, chemically inert, hypoallergenic, environmentally friendly and non-magnetic.
SAPPHIRE CRYSTAL
To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.
Spread the cost with 0% APR* finance available from V12 Finance. More Details.
*On qualifying purchases
OMEGA: Master Chronometer
Bringing together luxurious design and ground-breaking functionality, OMEGA have earned a reputation for producing world class timepieces that never fail to make a lasting impression.
In 1848, when Louis Brandt sat down to create the company’s very first watches, his ambition was to produce the most accurate movements possible. For OMEGA, precision is still the truest mark of mechanical watchmaking quality. For someone investing in a watch, those few extra seconds are a testament to superior craftsmanship, a determination for perfection, more technical investment, more research, more development and an infinite passion for achieving better innovation.
Since 2015, OMEGA’s Master Chronometer testing for each individual timepiece has provided customers with total transparency and a proven precision and performance they can trust.
IMPORTANT: This item has been reduced due to a small dent on the curve of the case by 3 o'clock which cannot be polished out. Contact our customer service team to request photographs.
Brand: | OMEGA |
---|---|
SKU: | WO00258 |
Brand collection: | OMEGA Seamaster 75th Anniversary Collection |
Recipient: | For him |
Watch case size: | 41-45mm |
Watch dial colour: | Blue |
Watch movement: | Automatic |
Water resistance: | 200M+ |
Case size | 42mm |
---|---|
Item condition | Ex-Display model |
Model reference | O210.22.42.20.03.002 |
Watch bezel type | Unidirectional rotating |
Watch clasp type | Deployment |
Watch dial numeral | Baton, Dot |
Watch features | Anti-magnetic, Chronometer Tested, Clear Caseback, Date |
Watch guarantee details | 5 year international |
Watch metal material | 18ct Rose Gold, Ceramic, Stainless Steel |
Watch power reserve | 55 hours |
Watch strap material | Resin / Plastic / Rubber / Silicone |
At Michael Jones Jeweller, we believe that shopping online should be just as convenient as shopping in one of our stores. View Delivery Information
• Free UK Special Delivery for all orders over £100.
• Click and Collect available
• International delivery is available for most products.
We’re sure that you’ll love your new item, but on the rare occasion that it isn’t 100% right just send it back within 30days and we’ll be more than happy to give you a full refund or an exchange.
For Pre-Owned watches and items purchased under a credit agreement, we will be happy to refund or exchange your item providing it is returned to us within 14 days of purchase. View Returns Information

Master Chronometer

Get Expert Advice
A member of our Customer Service team will contact you within 24 hours. Alternatively, you can book an in-store appointment here.