The Base Tide Pro watch by Nixon is a larger version of their popular Base Tide (42mm vs 38mm) and features a custom digital movement with 500 pre-programmed tide charts. It has dual time, alarm and countdown timer functions in addition to a wave counter, chronograph, and light. The band is made from 24mm custom injection molded silicone with a patented double locking looper and solid stainless steel buckle. Tested to 100m depth.