Casio Tough Solar AQS810W 1A3 Watch watch strap colour@Black it includes an LED light it includes an LED light with selectable illumination duration and afterglow This gents watch is a new member of the Citizen Mechanical Collection battery operating time: *10 months on rechargeable battery (operation period with normal use without exposure to light after charge) *23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Accuracy: ±30 seconds per month 12 24 hour format Home city World time city swapping Stopwatch Timer Alarm hourly time signal LED light (LCD part only) Calendar: Full auto calendar (to year 2099) Mute feature: Button operation tone on off Power Saving (display goes blank to save power when the watch is left in the dark) Approx