Size:Mens Case Material:Stainless Steel Dial Color:Black Bracelet/Strap:Stainless Steel Brushed Clasp Type:Push Button Foldover Clasp Movement:Automatic Chronograph - Chronometer Screw Down Crown:Yes Bezel:Uni-Directional Rotating Crystal:Anti-Reflective Scratch Resistant Sapphire Case Back:Transparent Water Resistant:600m/2000ft Case Diameter:45.5mm Warranty:2 Year Omega 232.30.46.51.01.002 Complete Details: •Brushed/Satin finished stainless steel case with polished finished beveled edges. •Brushed finished stainless steel bracelet with polished finished edges. •Bezel: ◦Polished & brushed ribbed edge. ◦Orange aluminum ring. ◦Black numbers and index hour markers. •Matte black dial. •Applied polished steel index hour markers with blue luminescent fill. •Applied metallic orange colored 12 hour marker. •Polished steel hands: hour & seconds hand with blue luminescent fill, minute hand with green luminescent fill as does the 12 o'clock dot on the rotating bezel. •Chronograph Stopwatch functions: ◦Large orange tipped 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 •Helium Escapement Valve located on the edge of the case at the 10 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. Featured Complications: Chronograph This watch is also known as 23230465101002