Model : Polished SS Case , Black Dial, Black subdials, Amble 5-55 Minute Numeral Hour markers on Stainless Steel Bracelet with single fold insignia deployant clasp.Movement: Japanese OS 20 Quartz Working Chronograph movement, Functions: Hours, Minutes, Seconds : Running Secs at 6.00 subdials Date @ 600 : Adjustment via crown, Chronograph : 12.00 subdial - minute counter 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 43mm x 16mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Solid case back with Detailed SPACEX Engraving Crown : One-piece solid screw-down crown with o ring Crystal: Sapphire crystal Water-Resistant