Omega Speedmaster Professional Moonwatch 311.92.44.51.01.007

Model #: 311.92.44.51.01.007 DARK SIDE OF THE MOON Omega Speedmaster Moonwatch Co-Axial Chronograph Mens Watch

Brushed/Satin finished black ceramic case with polished finished beveled edges. Polished black ceramic crown with the omega logo engraved. Polished black ceramic chronograph buttons. Polished black ceramic bezel with an engraved & matt chromium nitride filled tachymeter scale. Dial: High gloss black zirconium oxide ceramic main dial & sub-dials. Sub-dials surrounded with raised black rims with very fine printed silver colored indexes. Applied white gold polished index hour markers with luminescent fill. Printed silver colored minute/seconds & fractions of a second track. [ZrO2] engraved on the dial directly above the center hands. Polished white gold hands with luminescent fill. Chronograph Stopwatch functions: Large red tipped central seconds hand counter. Minute & hour counters are combined into a single sub-dial located at the 3 o'clock position. Small continuous running seconds hand sub-dial located at the 9 o'clock position. Date window displayed at the 6 o'clock position. Domed sapphire crystal on front & back. Case back engraved with "DARK SIDE OF THE MOON - Si 14 - ZrO2" Polished black zirconium oxide ceramic buckle top and a titanium deployant buckle mechanism. Movement: Omega caliber 9300, beats at 28,800 vph, contains 54 Jewels & has an approximate power reserve of 60 hours - thanks to its twin barrels mounted in series. Column-Wheel Chronograph - column wheel is visible from the transparent case back. 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 watch’s chronometric performance. The movement also features the now-standard 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 required between servicing. The combination of the SI 14 balance spring & the Co-Axial escapement makes for an extremely reliable & stable movement. The rotor & visible bridges are decorated with a unique "arabesque" wave design finish. Alternate model # 31192445101007 Condition : New/Unworn Edition : Special Edition Case Shape : Round Case Dimensions : 44.25mm Case Thickness : 16.50mm Case Material : Ceramic Dial Color : Black Crystal : Anti-Reflective Scratch Resistant Sapphire Bezel : Fixed Screw-in Crown : No Water Resistance No ratingDoes not allow contact with water 30m/99ft - 50m/165ftAllows for contact with water such as washing hands and rain 50m/165ft - 100m/330ftAllows for light poolside swimming 100m/330ft - 200m/660ftAllows for swimming, snorkeling and showering (do not expose to hot water) 200m/660ft - 500m/1650ftAllows for impact water sports such as board diving and scuba diving 500m/1650ft +Appropriate for serious deep water diving. Learn more about Water Resistance. Close : 50m/150ft No rating : Does not allow contact with water 30m/99ft - 50m/165ft : Allows for contact with water such as washing hands and rain 50m/165ft - 100m/330ft : Allows for light poolside swimming 100m/330ft - 200m/660ft : Allows for swimming, snorkeling and showering (do not expose to hot water) 200m/660ft - 500m/1650ft : Allows for impact water sports such as board diving and scuba diving 500m/1650ft : Appropriate for serious deep water diving Case Back : Transparent Band Material : Fabric Color/Finish : Black Clasp : Deployant Buckle 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