Unworn, Omega Seamaster Diver 300M, Ref# 210.62.42.20.01.003, box and papers.

The OMEGA Seamaster Diver 300M Ref. 210.62.42.20.01.003 is an exceptional luxury dive watch that pairs the iconic design of the Seamaster collection with the exclusivity of 18K Moonshine™ Gold. Its 42 mm case is crafted entirely from OMEGA's proprietary pale yellow gold alloy, renowned for its lasting brilliance and resistance to fading. A black ceramic bezel with a Ceragold™ diving scale frames the polished black ceramic dial, decorated with laser-engraved waves that have become a signature of the modern Diver 300M collection. The skeletonized hands and applied indexes are fashioned in 18K Moonshine™ Gold and filled with white Super-LumiNova for outstanding legibility in any environment, while the date window at 6 o'clock preserves the dial's perfect symmetry. A domed sapphire crystal with anti-reflective treatment on both sides provides exceptional clarity, while the conical helium escape valve ensures professional diving capability. Powering the watch is the OMEGA Co-Axial Master Chronometer Calibre 8801, visible through the sapphire caseback. Certified by METAS, this self-winding movement features a Co-Axial escapement, silicon balance spring, and resistance to magnetic fields up to 15,000 gauss, delivering extraordinary precision together with a 55-hour power reserve. Finished with a comfortable black integrated rubber strap and an 18K Moonshine™ Gold buckle, this Seamaster offers an ideal blend of luxury, technical innovation, and professional performance.

TECHNICAL DATA

Movement

• OMEGA Co-Axial Master Chronometer Calibre 8801
• Swiss automatic movement
• METAS-certified Master Chronometer
• Co-Axial escapement with free-sprung balance and silicon balance spring
• Anti-magnetic to 15,000 gauss
• 18K Sedna™ Gold rotor and balance bridge
• Frequency: 25,200 vph (3.5 Hz)
• Power reserve: 55 hours
• Functions: Hours, minutes, central seconds, date

Case

• 42 mm 18K Moonshine™ Gold case
• Unidirectional black ceramic bezel with Ceragold™ diving scale
• Black polished ceramic dial with laser-engraved wave pattern
• 18K Moonshine™ Gold skeleton hands and applied indexes with white Super-LumiNova
• Date display at 6 o'clock
• Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides
• Transparent sapphire caseback
• Conical helium escape valve
• Water resistance: 300 m / 1,000 ft (30 ATM)

Dimensions

• Case diameter: 42 mm
• Thickness: 13.8 mm
• Lug-to-lug: 49.7 mm
• Between lugs: 20 mm

Strap

• Integrated black rubber strap
• 18K Moonshine™ Gold pin buckle

All Pre-Owned Rolex watches are guaranteed to be 100% genuine and certified authentic. Certificates are issued by Watch CSA, the industry's leading independent authority on watch authentication.

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We offer a 3-day return period on eligible watches, starting from the date of delivery. To qualify, the watch must be returned in the same condition as received—unworn, unaltered, and with all original packaging, tags, and accessories included.

All returns must be approved in advance. Once received and inspected, refunds are processed promptly back to the original payment method.

For full details on eligibility, conditions, and the return process, please refer to our Return Policy.