27-jewel precision quartz alarm chronograph; 1/10th second, 60 seconds, 30 minutes elapsed time; lap time, split time & fly-back simultaneous 2nd timing; Comfort countour fit solid stainless steel case; Screw-locked crown; Screw-locked, hi-raised embossed back; Navigationa slide rule bezel for speed, distance and fuel; Mb-microtek H3 TRITIUM illumination system; Water resistant to 330 feet; 2-year manufacturer's international warranty.