The Deep 300 Tide watch by Quiksilver features Quiksilver's award winning Deep Tide System technology with preprogrammed tide data for 300 spots around the world. It's made of a custom reinforced stainless steel case with a stainless steel screw down case back. It has a custom polyurethane strap, stainless steel buckle, and reinforced spring bars. It's also loaded with functions like: Dual time, Dual alarm, Countdown timer, Surf heat timer with wave counter, 1/100 training chronograph with lap display.