Omega Seamaster Professional Diver 300M Ref. 210.30.42.20.01.001 – Black Ceramic, 42 mm

A modern dive-watch icon with unmistakable Omega character. This Seamaster Professional Diver 300M pairs a polished black ceramic wave dial with a black ceramic diving bezel and a 42 mm stainless steel case. Bold luminous markers, skeletonized hands and a date window at six o’clock give it the distinctive look that has made the Seamaster a favorite on the wrist and in the collector’s case.

Inside is Omega’s automatic Co-Axial Master Chronometer calibre 8800, combining a 55-hour power reserve with METAS-certified performance and resistance to magnetic fields up to 15,000 gauss. A transparent sapphire caseback reveals the movement, while the stainless steel bracelet completes the classic steel-on-steel presentation.

• Item number: 3490
• Brand / model: Omega Seamaster Professional Diver 300M
• Reference: 210.30.42.20.01.001
• Case: 42 mm stainless steel
• Dial: Black ceramic with laser-engraved waves and luminous hands and hour markers
• Bezel: Black ceramic, unidirectional, with white enamel diving scale
• Movement: Automatic Omega Co-Axial Master Chronometer calibre 8800
• Power reserve: Approximately 55 hours
• Crystal: Domed sapphire with antireflective treatment
• Caseback: Transparent sapphire
• Bracelet: Stainless steel with folding clasp
• Features: Date, screw-in crown and helium escape valve
• Manufacturer’s water-resistance specification: 300 metres / 1,000 feet; current water resistance has not been verified.
• Condition: Pre-owned. Please examine the photographs and interactive rotation for the condition of this individual watch.

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