Unworn, Omega Seamaster Planet Ocean 600M, Ref# 217.30.42.21.01.002, box and papers.

The OMEGA Seamaster Planet Ocean 600M Ref. 217.30.42.21.01.002 is a professional dive watch that showcases the latest evolution of OMEGA's renowned underwater collection. Built for uncompromising performance, the 42 mm stainless steel case combines robust construction with refined finishing, making it equally at home beneath the waves or on the wrist every day. The unidirectional blue ceramic bezel, featuring a white enamel diving scale and a Grade 5 titanium bezel ring, frames a matte black dial with rhodium-plated hands, applied indexes, and four Arabic numerals, all filled with white Super-LumiNova® for exceptional visibility in low-light conditions. A flat scratch-resistant sapphire crystal with anti-reflective treatment on both sides ensures maximum clarity, while the screw-in crown and helium escape valve reinforce the watch's professional diving credentials. Driving the timepiece is the OMEGA Co-Axial Master Chronometer Calibre 8912, a METAS-certified self-winding movement offering outstanding precision, resistance to magnetic fields up to 15,000 gauss, and a practical independently adjustable hour hand for seamless time-zone changes. Twin barrels mounted in series provide a 60-hour power reserve, while the Grade 5 titanium caseback, engraved with the iconic Seamaster Seahorse medallion, celebrates the collection's rich maritime heritage. Completing the watch is a stainless steel bracelet with a foldover clasp featuring a comfort-adjustment system and integrated diver extension. Water-resistant to 600 meters.

TECHNICAL DATA

Movement

• OMEGA Co-Axial Master Chronometer Calibre 8912
• Swiss self-winding mechanical movement
• METAS-certified Master Chronometer
• Co-Axial escapement with silicon balance spring
• Twin barrels mounted in series
• Anti-magnetic to 15,000 gauss
• Independently adjustable hour hand (time-zone function)
• Frequency: 25,200 vph (3.5 Hz)
• Power reserve: 60 hours

Case

• Stainless steel case
• Unidirectional blue ceramic bezel
• White enamel diving scale with Grade 5 titanium bezel ring
• Matte black dial
• Rhodium-plated hands and applied indexes with white Super-LumiNova®
• Four Arabic numerals
• Flat scratch-resistant sapphire crystal with anti-reflective treatment on both sides
• Grade 5 titanium caseback with engraved Seamaster Seahorse medallion
• Screw-in crown and helium escape valve
• Water resistance: 600 m / 2,000 ft (60 ATM)

Dimensions

• Case diameter: 42 mm
• Thickness: 13.65 mm
• Lug-to-lug: 47.5 mm
• Between lugs: 21 mm

Strap

• Stainless steel bracelet
• Stainless steel foldover clasp
• Comfort-adjustment system with integrated diver extension

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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.