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Omega Seamaster Planet Ocean Co-Axial Master Chronometer Chronograph 215.30.46.51.99.001 45.5 mm, Caliber 9900, 60-hour power reserve

Omega Seamaster Planet Ocean 600M Chronograph 215.30.46.51.99.001 | Gray Dial, Stainless Steel Bracelet, Caliber 9900, 45.5 mm

• Imposing Presence in Stainless Steel (45.5 mm): Solid construction in high-strength stainless steel with an integrated bracelet weighing 261 grams, a helium escape valve at the 10 o’clock position, and extreme water resistance to 600 meters (60 bar).
• Co-Axial Master Chronometer Caliber 9900: Manufacture chronograph with column wheel and double barrel, METAS-certified, immune to magnetic fields up to 15,000 gauss, and featuring a 60-hour power reserve.
• Titanium/Ceramic Gray Dial with Intuitive Readability: A gray dial that groups the chronograph’s hours and minutes into a single sub-dial at the 3 o’clock position for a clean readout, alongside the small seconds sub-dial at 9 o’clock and the date window at 6 o’clock.
• Unidirectional Ceramic Bezel: Highly durable rotating bezel with a diving scale in Liquidmetal™ or titanium nitride to ensure unalterable durability in marine environments.
• Integrated Bracelet with Micro-Adjustment: Sturdy stainless steel links with a brushed and polished finish, featuring a safety folding clasp with a diving extension.

Product Description

The Omega Seamaster Planet Ocean 600M Chronograph (Ref. 215.30.46.51.99.001) is a true showcase of watchmaking prowess and nautical engineering. Housed in an imposing 45.5 mm stainless steel case with a matching metal bracelet, this timepiece combines a commanding presence with professional-grade technical diving specifications.

Its gray dial with a technical finish features OMEGA’s intuitive chronograph layout: it groups the 60-minute and 12-hour counters into a single sub-dial at the 3 o’clock position, allowing for a reading of elapsed time identical to that of a conventional watch. It retains the small seconds sub-dial at 9 o’clock and the date window at 6 o’clock. The hands and applied hour markers are coated with Super-LumiNova to ensure immediate readability underwater, protected by a convex sapphire crystal with anti-reflective coating on both sides and featuring the characteristic helium escape valve at the 10 o’clock position.

Inside, the self-winding OMEGA Caliber 9900 beats, visible through the transparent sapphire crystal case back. Backed by METAS’s strict Master Chronometer certification, this movement with a column wheel and vertical clutch offers a 60-hour power reserve, unwavering chronometric precision, and total immunity to magnetic fields of up to 15,000 gauss.

Technical Specifications

Detailed Specifications

Brand / Collection OMEGA / Seamaster Planet Ocean 600M Chronograph

Reference 215.30.46.51.99.001

Movement Automatic Co-Axial Master Chronometer Chronograph (OMEGA Caliber 9900)

Certification / Power Reserve Master Chronometer by METAS / 60 hours (double barrel)

Case Stainless steel (45.5 mm diameter / 18.90 mm thickness / 52.30 mm lug-to-lug)

Lug Width 22 mm

Dial Gray with integrated chronograph sub-dials at 3 o’clock and date at 6 o’clock

Crystal Convex, scratch-resistant sapphire crystal with anti-reflective coating on both sides

Case Back Transparent sapphire crystal

Bracelet Stainless steel with a safety folding clasp and diving extension

Bezel Unidirectional rotating ceramic bezel with diving scale

Water Resistance 60 bar (600 meters / 2,000 feet) with helium escape valve

Total Weight Approx. 261 g