Tide Graph Watches
The tide graph indicates tidal movement based on the Moon's transit over the meridian and the lunitidal interval. Tides change approximately every six hours based on the position of the moon relative to the Earth's orbit. Input the difference from moon up until the next high tide. This is the lunitidal interval. This is used to calculate the time of tides. Tide watches display the remaining time until the next high or low tide to the user. So if you’re out at sea, you can know about tidal movement with the Tide Graph feature. Today most of watches with Tide graph also feature barometer, thermometer, and a compass on them too. Altimeter watches are the perfect choice for outdoor adventurers.