Nixon Surf Watch - much loved but in great condition. No flaws or marks. From website: An essential tide watch with both style and substance, the Siren matches contemporary design with surf-specific features and sustainable materials. #Tide recycled plastic uses ocean-bound waste to create the super-durable case material, which means cleaner breaks for everyone. Plus, the basic tide functionality and soft silicone band mean it slays both in and out of the water. Durability Custom-molded case made from #tide ocean plastics with stainless steel caseback and gasket pushers. Special Feature Basic tide high/low tide functionality, chronograph, and countdown timer. Plus, the patented Locking Looper™ keeps the band secure. Movement 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. Water Rating 100 Meter / 10 ATM