OMEGA
Ref. 210.20.42.20.01.001
Seamaster Diver 300M Co-Axial 42mm
Ref. 210.20.42.20.01.001
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Since 1993, the OMEGA Seamaster Professional Diver 300M has earned a legendary reputation, admired for its exceptional performance, innovative design, and deep maritime heritage. Today’s modern iteration elevates that legacy with OMEGA’s finest materials and cutting-edge technology.
This 42 mm masterpiece is crafted in stainless steel and 18K Sedna™ gold, featuring a black ceramic bezel set with a Ceragold™ diving scale. The polished black ceramic dial, adorned with laser-engraved waves, is complemented by a date window at 6 o’clock, merging elegance with practicality.
Skeleton hands and raised indexes in 18K Sedna™ gold, filled with white Super-LumiNova, ensure remarkable legibility, while the reimagined conical helium escape valve combines professional functionality with refined design. Secured on a two-tone stainless steel and 18K Sedna™ gold bracelet, the watch houses the OMEGA Master Chronometer Calibre 8800, visible through the sapphire-crystal wave-edged caseback. METAS-certified, this movement guarantees extraordinary precision, magnetic resistance, and reliability.
| Brand | OMEGA |
|---|---|
| Product Reference | 210.20.42.20.01.001 |
| Product Type | Watch |
| Collection | Seamaster |
| Sub-collection | Diver 300m |
| Case Diameter | 42mm |
| Case Material | Stainless Steel & 18K Sedna™ Gold |
| Dial Colour | Black |
| Crystal | Sapphire |
| Strap Type | Bracelet |
| Clasp Type | Folding Clasp |
| Strap Material | Stainless Steel & 18K Sedna™ Gold |
| Movement | Self-winding Calibre: OMEGA 8800 |
| Power Reserve | 55 Hours |
| Water Resistance | 300m / 1000ft |
| Warranty | 5 Years |
| Michael Spiers ID | 4029172 |
Delivery is made by Royal Mail Special Delivery and should reach you within 1-3 working days, excluding Bank Holidays and weekends.
Size Guide
Choosing the right ring size ensures maximum comfort and the perfect fit. If you already own a ring that fits well, you can easily use it as a reference. Otherwise, follow the simple options below to find your correct size.
If you do not know your ring size, we recommend visiting one of our showrooms, where our friendly and knowledgeable team can help you find the right ring size for you.
Request an AppointmentUK Ring Size Chart
| Size | UK Size |
|---|---|
| 01 | B |
| 02 | D |
| 03 | E-F |
| 04 | F |
| 05 | F-G |
| 06 | G |
| 07 | H |
| 08 | I |
| 09 | J |
| 10 | J-K |
| 11 | K-L |
| 12 | L |
| 13 | M-N |
| 14 | N-O |
| 15 | O-P |
| 16 | P |
| 17 | Q |
| 18 | Q-R |
| 19 | R |
| 20 | S |
| 21 | S-T |
| 22 | T-U |
| 23 | U-V |
| 24 | V |
| 25 | W |
| 26 | X |
| 27 | X-Y |
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