Movement: Custom digital with pre-programmed tide charts for 200 beaches for the next 15 years, future tide, dual time, alarm, countdown timer, wave counter, chrono, and light. Case: Custom 100 meter fiber reinforced polycarbonate with raised bezel, direct tide pusher and treated acrylic crystal. 37.75 x 29.25mm. Band: Custom injected polyurethane with patented locking looper and stainless steel buckle. 20.25mm wide.