This article was originally published in the May/June 2022 Issue of the WatchTime print magazine. Photos by Sinn, Wempe and Martina Richter.

According to the tide calendar, high tide will reach its peak shortly before 10 o?clock this morning. That would be a good time for a swim. It?s late summer and the water in the Wadden Sea is still warm. Or maybe you would rather sail your boat out to a sandbank and take a nice hike on the mudflats when the tide is low"

While we refer to ?high? and ?low? tide, these terms actually denote the periods of time when the water is in motion. The difference in height between the two phases is called the tidal range, which varies greatly around the globe. Along the coasts of the North Sea, where the Wadden Sea is located, the tidal range measures between 2 and 3 meters (6-1/2 to almost 10 feet). When sailing or hiking along coasts where the tidal range is significantly large, it?s important to know the times of high and low tide. Consulting local tide tables is mandatory and checking your watch is essential. Watches with tide displays are very practical, but also rather rare, which is surprising because they are remarkably simple to use ? if you have a tide calendar to consult.
Like the majority of timepieces made by Frankfurt-based manufacturer Sinn Spezialuhren, its tide watch, the 240 St GZ, prioritizes functionality. This is obvious from the very first glance at the dial. The face has strong contrasts, and the time displ...