G-LIDE GBX-100 series
Equipped with a high-definition MIP LCD, which allows for detailed displays of tidal and moon phases, as well as the current time and other measured values.
It also comes equipped with a stopwatch and timer as well, but the most noteworthy feature of this wristwatch is the tide graph.
Not only does it display hide tide and low tide, it also provides you with tidal height information.
It can easily be set into a smartphone (or iPhone) PORT.
This feature is extremely useful for surfers and fishers. I also use it while fishing.