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Close 300m/1000ft Case Back Solid Band Material Stainless Steel Color/Finish Brushed & Polished Clasp Push Button Folding Clasp Clasp Features Push-Button Quick Micro Adjustment Lug Width 20mm 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

SEAMASTER DIVER 300M SUMMER BLUE COLLECTION. The case backfeatures the Seamaster logo depicting a trident-bearing Poseidon and two seahorses: OMEGAs 1956 original and the brands current design.

• Brushed stainless steel case with polished beveled corners.
• Polished stainless steel crowns.
• Helium escape valve located on the case edge at the 10 o’clock position.
• Bezel:
• Stainless steel uni-directional turning bezel.
• Polished blue ceramic bezel insert.
• Summer Blue enameldiving scale.
• Luminous dot at the starting point.
• Dial:
• Summer blue gradient dial made of zirconium oxide ceramic. With [ZrO2] engraved on the dial directly below the center hands.
• Laser engraved wave design.
• Applied polished hour markerswith Summer Blue colored luminous fill.
• Fine printed minute/seconds track.
• Polished hands with Summer Blue colored luminous fill.
• Date window located at 6 o’clock.
• Movement:
• Omega Master Co-Axial caliber 8800, beats at 25,200 vph, contains35 jewels & has an approximate power reserve of 55 hours.
• METAS Certified Master-Chronometer:The assembled watch,withitsCOSC certified Chronometer movement, passes rigorous teststhat replicate real-life conditions. The METAS certificationtestswater resistance, precision and magnetic resistance.
• Anti-magnetic: resistant to magnetic fields greater than 15,000 gauss.
• Features Omegas Si14 silicon balance spring & Co-Axial Escapement.
• The rotor & visible bridges are decorated with a unique arabesque wave design finish.

Alternate model # 21030422003003

Mens Omega 210.30.42.20.03.003 Seamaster Diver 300m Co-Axial Master Chronometer 42mm Watch