Speedmaster '57 Chronograph

rushed/Satin finished 18kt yellow gold case with polished finished beveled edges.Brushed finished bezel with engraved & black filled Tachymeter Scale.Dial:Flat silver main dial.Recessed silver sub-dials with a fine concentric circular pattern finished rims & flat centerApplied yellow gold toned index hour markers with luminescent fill.Printed black minute/seconds & fractions of a seconds track.Yellow gold toned hands, the hour & minute hands with luminescent fill.Chronograph Stopwatch functions:Large central seconds hand counter.Minute & hour counters are combined into a single sub-dial located at the 3 o'clock position. The hour hand is of orange aluminum & the minute hand is polished steel - both with luminescent fill.Small continuous running seconds hand sub-dial located at the 9 o'clock position.Date window displayed at the 6 o'clock position.Slightly domed sapphire crystal.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.