Omega Seamaster Professional Diver 300M Co-Axial Master Chronometer
Concept & History
The Omega Seamaster Professional Diver 300M traces its origins back to 1993, when Omega introduced a watch designed for professional diving to a broader market segment. The completely redesigned 2018 generation marked a substantial leap forward: a black ceramic bezel, Co-Axial escapement, and the first-ever introduction of the METAS standard as a Master Chronometer. Reference 210.30.42.20.01.001 is the core configuration in stainless steel—professionally designed and focused on tactical readability and mechanical precision without compromising on aesthetics.
Caliber & Technology
The Caliber 8800 is a manufacture movement featuring bidirectional automatic winding, a Co-Axial escapement, and a silicon balance spring. The silicon balance spring requires no conventional lubrication and is completely resistant to magnetic fields up to 15,000 gauss—a parameter explicitly verified in the METAS testing procedure. Master Chronometer certification confirms a daily rate accuracy of 0 to +5 seconds, determined under real-world wearing conditions. Power reserve: 55 hours. Beat rate: 25,600 vibrations per hour. Water resistance: 300 m.
Case & Material
The 42 mm stainless steel case features a unidirectional rotating bezel made of black ceramic with white markings and a luminescent marker at 12 o'clock. The screw-down crown is secured against accidental opening by an integrated crown guard; a helium escape valve at 10 o’clock is standard. The screw-down display case back is engraved in the Omega style with “10 Years” and “Giants Software.” Strap: Stainless steel bracelet with a stainless steel folding clasp.
Aesthetics & Readability
The black dial, featuring a horizontal wave pattern, is adorned with applied, rhodium-plated hour markers and hands filled with SuperLuminova on both sides—a combination that ensures clear readability even in completely dark conditions. The flange features a continuous minute scale. The double-sided anti-reflective sapphire crystal ensures a low-reflection view in changing environments. The all-black color scheme of the dial and bezel creates a visually cohesive, functionally optimized appearance.
All photos show exactly the article we offer - no stock images!
This item is taxed in accordance with § 25 A UStG - VAT cannot be shown.
For further information, see Technical Details.



























