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Omega 311. Speedmaster Moonwatch Co-Axial Chronograph Mens Watch

Omega 311. Speedmaster Moonwatch Co-Axial Chronograph Mens Watch


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Mens Omega 311. Speedmaster Moonwatch Co-Axial Chronograph Watch

Condition New/Unworn
Edition Special Edition
Case Shape Round
Case Dimensions 44.25mm Black Ceramic
Case Thickness 16.50mm
Case Material Ceramic
Dial Color Black
Crystal Anti-Reflective Scratch Resistant Sapphire
Bezel Fixed
Screw-in Crown No
Water Resistance 50m/167ft
Case Back Transparent
Band Material Fabric
Color/Finish Black
Clasp Deployant Clasp
Clasp Notes Black Brushed Ceramic
Movement Automatic - Chronometer
Complications Chronograph
COSC Certified Yes


  • 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.
  • Ceramic Matte black bezel with a black lacquered tachymetric scale / tachymeter.
  • Dial:
    • Matte black ceramic main dial & sub-dials.
    • Sub-dials at 3 & 9 o'clock are surrounded with raised black rims with very fine laser engraved indexes.
    • Applied blackened hour markers with black luminous fill.
    • Minute/seconds & fractions of a second track created using laser ablation.
    • [ZrO2] engraved on the dial directly above the center hands.
  • Blackened hands filled with black luminous fill.
  • Chronograph Stopwatch functions:
    • Large black central seconds hand counter.
    • Minute & hour counters are combined into a single sub-dial located at the 3 o'clock position. The brushed blackened hour minute, & seconds hands are coated with black Super-LumiNova.
  • Small continuous running seconds hand sub-dial located at the 9 o'clock position.
  • Date window is black on black and 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"
  • Black brushed ceramic deployant clasp.
  • 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 # 31192445101005

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