Learn more about Water Resistance.

Close 300m/990ft Case Back Transparent Band Material Rubber Color/Finish Black Clasp Tang Buckle Clasp Notes Black Ceramic Movement Automatic – Chronometer An automatic/self-winding movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in an enclosed barrel inside the movement. The energy produced from the wound spring drives the movement functions. An automatic watch has a weighted rotor mounted on a pivot to the back of the movement, and the rotor is connect to the mainspring through a series of gears. The natural motion of the wearers wrist will cause the rotor to spin, which in turn will automatically wind the mainspring. Please note: An automatic winding watch which has completely wound-down or is at the end of its power reserve requires manual winding. Manually winding an automatic watch ensures that the watch is at full power-reserve when first worn, and as long as the watch is in motion thereafter it will remain fully wound, ensuring that when the watch is removed it will run the specificed power-reserve duration. Close COSC Certified Yes

• Brushed black ceramic case with polished beveled corners.
• Titanium crowns.
• Helium escape valve located on the case edge at the 10 o’clock position.
• Bezel:
• Titanium with polished black ceramic fill.
• White enamel diving scale.
• Luminous dot at the starting point.
• Dial:
• Black polished zirconium oxide ceramic dial, with[ZrO2] engraved on the dial directly below the center hands.
• Laser engraved wave design.
• Applied hour markers with luminous fill.
• Fine printed minute/seconds track.
• Skeltonized hour & minute hands.
• Central seconds hand.
• Hands with luminous tips.
• Case back is oriented & aligned with the watch, thanks to Omega’s patented NAIAD Lock system.
• Movement:
• Omega Master Co-Axial caliber 8806, beats at 25,200 vph, contains 35 jewels & has an approximate power reserve of 55 hours.
• METAS Certified Master-Chronometer: The assembled watch, with its COSC certified Chronometer movement, passes rigorous tests that replicate real-life conditions. The METAS certification tests water resistance, precision and magnetic resistance to 15,000 gauss.
• Anti-magnetic: resistant to magnetic fields greater than 15,000 gauss.
• Features Omegas Si14 silicon balance spring & Omegas Co-Axial Escapement.
• The rotor & visible bridges are decorated with a unique arabesque wave design finish.

Alternate model # 21092442001001

Mens Omega 210.92.44.20.01.001 Seamaster Diver 300m Co-Axial Master Chronometer 43.5mm Watch