Nixon A2891944 Lodown II Black Not Croc Unisex Watch MOVEMENT: Custom digital module with pre-programmed tide information for 270 beaches around the world. Functions include time of day (12 hour or 24 hour), day/date, calendar range from 2005-2105, tide, future and past tide, dual time, alarm, countdown timer, wave counter, chronograph and an EL backlight. DIAL: Positive or negative LCD with a printed tide graph and EL backlight function. CASE: 43 mm, 100 meter/10 ATM custom injection molded fiber reinforced ABS case with a recessed hardened mineral crystal, custom molded recessed triple gasket pushers, stainless steel screw-on caseback and screw pin lugs BAND: 32-25 mm custom injection molded polyurethane tapered band with a patented locking looper and a solid stainless steel buckle.