Custom digital module with basic tide. Functions include time of day (12 hour or 24 hour), date calendar through 2099, basic tide, future tide, EL backlight, chronograph, and customizable countdown timer. Home screen can be set to display time and date or time and tide.;38mm, 100 meter/10 ATM, custom injection molded reinforced recycled ocean plastics case. Custom stainless steel gasketed pushers, stainless steel screw down caseback, and stainless steel screw bar lugs.;18mm-16mm tapered custom injection molded ultra-soft silicone band with a patented locking looper and a solid stainless steel buckle and screw-bars.