![]() ![]() This questions reappears constantly in the watch community. Rhodium plated finish with exclusive Geneva waves in arabesque. Silicon balance-spring on free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Self-winding chronograph movement with column wheel mechanism and Co-Axial Escapement for greater precision, stability and durability of the movement. The picture above is of a caliber 9300 found in an Omega Speedmaster Dark Side of the Moon edition. Other notable features of the 9300 are the co-axial escapement, silicon balance spring, double barrels, column wheel and the ultra smooth vertical clutch system. The rotor winds in both directions to reduce winding time. Omega’s in-house caliber 9300 equipped with Co-Axial Escapement for “greater precision, stability and durability” according to Omega documentation. Speedmaster models, White Side of the Moon Speedmaster, Dark Side of the Moon Speedmaster, Planet Ocean Chronograph (Add yours to the comments below…) Hours, minutes, central chronograph seconds, small seconds at 9:00, 12 hour chronograph totalizer at 3:00, date at 6:00 ![]()
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