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Close 50m/167ft Case Back Transparent Band Material Alligator/Crocodile Leather Color/Finish Black Band Notes White Stitching Clasp Push Button Deployant Buckle Lug Width 21mm 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

• Brushed finished stainless steel case with polished finished beveled corners.
• Black ceramic bezel with a Liquidmetal Tachymeter scale.
• Matte black dial.
• Applied polished index hour markers with luminescent fill.
• Fine printedRACING style minute/seconds & fractions of a second track.
• Polished hands withluminescent fill.
• Small continuous running seconds hand sub-dial located at the 9 o’clock position.
• Date window displayed at the6 o’clock position.
• Chronograph Stopwatch functions:
  • Large central seconds hand counter with luminous tip.
  • Minute & hour counters are combined into a single sub-dial located at the 3 o’clock position.
• Movement:
• Omega Master Co-Axial caliber 9900, beats at 25,200 vph, 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, whose movement is a COSC chronometer, passes teststhat replicate real-life wearing conditions. The METAS certificationtestswater resistance, precision and magnetic resistance to 15,000 gauss.
• Anti-magnetic: resistant to magnetic fields greater than 15,000 gauss. In addition to measuring the performance of the watch in daily wearing conditions, the process also ensures that the watch and its movement function properly when exposed to magnetic fields of 15,000 gauss.
• Features Omega’s Si14 silicon balance spring that improves resistance to shock and magnetism and thus to sustainedreliability.
• 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 intervalsrequired between servicing.
• The rotor & visible bridges are decorated with a unique “arabesque” wave design finish.

Mens Omega 329.33.44.51.01.001 Speedmaster Racing Master Chronometer Chronograph 44.25mm Watch