Learn more about Water Resistance.

Close 100m/330ft Case Back Transparent Band Material Alligator/Crocodile Leather Color/Finish Blue Clasp Push Button Deployant Buckle Movement Automatic 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 Complications Chronograph, Moonphase

Blue Side of the Moon

• Brushed finished blue ceramiccase with polished finished beveled corners.
• Polished blue ceramic bezelwith satin finished Ceragold (18kt Sedna gold filled)Tachymeter scale.
• Polished blue ceramic crown & chrono buttons.
• Polished blueaventurine glass dial.
• Polished 18kt Sedna gold hands, the center hands with luminescent fill.
• Applied 18kt Sedna gold index hour markers with luminescent fill.
• Fine printed printed minutes/seconds & fractions of a second track.
• Small continuous running seconds hand at the center of the sub-dial at the 9 o’clock position.
• Date displayed on the perimeter of the sub-dial at the 9 o’clock position, indicated via the red circular tipped hand.
• Chronograph Stopwatch functions:
  • Column wheel mechanism.
  • Large central seconds hand counter with luminous spear-head tip.
  • Minute & hour counters are combined into a single sub-dial located at the 3 o’clock position.
• Moonphase:
• Via aperture at 6 o’clock.
• Blue enamel aventurine glass moonphase disc with the moons in 18kt Sedna gold.
• Omega Master Co-Axial caliber 9904, beats at 28,000 vph (4Hz), contains54 Jewels & has an approximate power reserve of 60 hours,courtesy ofits twin barrels mounted in series.
• Swiss Federal Institute of Metrology (METAS) certified Master-Chronometer. The finished watch movement is a COSC chronometer, passes tests that replicate real-life wearing 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.
• The movement features Omega’s “Si 14” silicon balance spring, which contributes to the movements outstanding resistance to shock and to environmental disturbances and thus to the watchs chronometric performance.
• The movement also features Omegas Co-Axial Escapement which contributes to greater precision, stability & durability. The Co-Axial escapement has less friction & reduces the necessity of lubrication thus reducing the time intervals required between servicing.
• The rotor & visible bridges are decorated with a unique “arabesque” wave design finish.

Alternate model # 30493445203002

Mens Omega 304.93.44.52.03.002 Speedmaster Moonphase Co-Axial Master Chronometer Chronograph 44.25mm Watch