Omega Seamaster Planet Ocean Reference #: 215.30.44.21.01.001

This professional dive watch features a 43.5 mm stainless steel case with a brushed finish and polished beveled corners.  The dial is crafted from black ceramic (ZrO2), offering high gloss and durability, with applied polished index hour markers and Arabic numerals at 6, 9, and 12.  The hands are facetted and polished, filled with luminous material (blue emission for hour and seconds hands, green for the minute hand), and the seconds hand features a distinctive orange tip. A date window is positioned at 3 o'clock.

The timepiece features a robust 43.5 mm stainless steel case with a height of approximately 16.0–16.1 mm and a lug-to-lug distance of 49 mm.  The lug width is 21 mm.  It is water-resistant to 600 meters (2000 feet) and includes a helium-escape valve at the 10 o'clock position. 

The dial and bezel are crafted from black ceramic (ZrO2).  The unidirectional rotating bezel utilizes Omega's Liquidmetal™ technology for the diving scale.  The crystal is a domed, scratch-resistant sapphire with anti-reflective treatment on both sides, and the case back is a transparent exhibition sapphire. The bracelet is stainless steel with a patented foldover clasp featuring a diver's extension.

The watch is powered by the Omega Co-Axial Master Chronometer Calibre 8900, a self-winding movement visible through the case back. 

• Certification: METAS Master Chronometer certified, ensuring precision and magnetic resistance up to 15,000 gauss. 

• Frequency: 25,200 vibrations per hour (3.5 Hz). 

• Jewels: 39.

• Power Reserve: Approximately 60 hours, provided by two barrels mounted in series. 

• Balance Spring: Free-sprung balance with a silicon balance spring (Si14). 

• Escapement: Co-Axial escapement.

• Functions: Hours, minutes, seconds, date, and a time-zone function (quick-set hour hand). 

• Finishing: Rhodium-plated rotor and bridges decorated with Geneva waves in an arabesque pattern. 

• Diameter: 29.00 mm.