NicksWatchesNot from my own collection but it is the most expensive thing to ever touch my wrist 😅 This is the first time I’ve ever seen tide indication on a watch! On most of the earth's coasts, there are two high tides per day, always precisely 12 hours and 24 minutes apart. The Portugieser Yacht Club Moon & Tide indicates the expected times for the next high and low water.