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. WATCH DIAL: The display is either a positive or negative LCD with a printed tide graph. WATCH 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. WATCH BAND: 32-25 mm custom injection molded ultra-soft silicone tapered band with a patented locking looper and a solid stainless steel buckle with screw-bar attachment.