Prospex Speedtimer Chronograph Watch SSC939P1 Movement Type_Quartz 2/3 hands If the watch notices you

If the watch notices you are running low on battery during an exercise

when it adapts easily to leisure activities

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Full auto-calendar (to year 2099)

Prospex Speedtimer Chronograph Watch SSC939P1 Movement Type_Quartz 2/3 hands If the watch notices youCalibre Movement TypeSolar Calibre no. V192 Power Reserve Battery LifeOperating for approx. 6 months (when fully charged) Case Case MaterialStainless steel Glass MaterialCurved sapphire crystal LumiBriteLumiBrite on hands and index(es) ClaspThree fold clasp with push button release Layout Water Resistance10 bar Case SizeThickness: 13. 0mm Diameter: 41. 4mm Lug to lug: 45. 9mm Weight164. 0g Features Other FeaturesTachymeter function Screw case back