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Close 50m/5atm/167ft Case Back Solid Band Material Calfskin Leather Color/Finish Black Clasp Tang Buckle Lug Width 19mm Movement Manual Wind – Chronometer Manual Wind Movement: The movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in a barrel inside the movement. The mainspring needs to be wound manually, typically via the crown of the watch. Once the spring is wound the energy from thetension-release of the mainspring drives the movement functions. To ensure uninterrupted operation of the watch, the watch will require rewinding before the mainsprings completely winds down. Most manual-wind watches will have a 35-45 hour power-reserve, yet some might have less & some significantly more, check the specs on each watch to verify the power-reserve duration. Close Complications Chronograph COSC Certified Yes

Case: stainless steel – brushed & polished Case back: Features the Seahorse medallion. Engraved with the words THE FIRST OMEGA IN SPACE and OCTOBER 3, 1962″ Bezel: fixed, black, stainless steel and aluminum, polished Dial: blue-grey – stepped. applied vintage omega logo. Hour Markers: painted, index, luminous, vintage colored super-luminova Hands: polished, luminous, vintage colored super-luminova Seconds hand: sub-dial at 6 o’clock Calibre: Omega calibre 3861, beats at 3Hz/21600 vph, 26 jewels, power reserve of 50 hours (2 days)Watch functions: Chronograph: Large central seconds counter hand., 30 minute counter sub-dial at 3 o’clock., 12 hour counter sub-dial at 6 o’clock.

Mens Omega 310.32.40.50.06.001 Speedmaster Anniversary Series 39.7mm Watch