Base Tide Pro - Black / Green PositiveMake sure the waves you catch are cleaner with the new and improved Base Tide Pro. Now made with #tide recycled ocean plastics, each watch keeps garbage away from the water while keeping you up to date with pre programmed tide info from 550 beaches from around the globe. This 42mm digital tide watch is water resistant down to the pushers with a 10 ATM water rating, and the ventilated, silicone band stays in place thanks to our double Locking Loopers.