Nixon Siren SS tide watch. Custom digital module with basic tide functions. Day/date, basic/future tide, backlight, chronograph, and countdown timer. Custom negative LCD with a printed dial masking. 36mm, 100 meter/10 ATM, custom stainless steel case. Stainless steel gasketed pushers with stainless steel caseback. 18mm-16mm tapered custom injection molded ultra-soft silicone band with patented locking looper. Imported.