This handsome Casio Edifice comes equipped with loads of useful features such as Bluetooth timekeeping accuracy, Tough Solar powered movement, day/date display, 100 meters water resistance, world time, and daily alarm settings. Case/bezel material: Stainless steel One-touch 3-fold Clasp Solid Band Stainless Steel Band Neobrite Mineral Glass Tachymeter Screw Lock Crown 100-meter water resistance Solar powered Mobile link (Wireless linking using Bluetooth® ) Airplane mode Dual time (Home city time swapping) 1-second stopwatch Measuring capacity: 23:59'59 Measuring modes: Elapsed time, split time Other: Speed (0 to 300 units/hour) Daily alarm Low battery alert Full auto-calendar (to year 2099) Power Saving (hands stop to save power when the watch is left in the dark) Date display Regular timekeeping Analog: 3 hands (hour, minute(hand moves every 10 seconds), second), 4 dials (24-hour, dual time hour and minute, dual time 24-hour, day) Accuracy: ±15 seconds per month (with no mobile link function) Approx. battery operating time: 8 months on rechargeable battery (operation period with normal use without exposure to light after charge) 34 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Size of case : 52×48.1×14.2mm Total weight : 199g