Tide Clock Movement, 3/16" Maximum Dial Thickness

Based on the lunar day of 24 hours and 50 minutes, this Quartex Tide Movement tells the general time of high and low tide. This unique movement features an encapsulated gear train inside the movement that's designed to keep foreign matter out of the gears for years of trouble-free operation. Please be advised that since this movement operates on the lunar day as described above, it is not a basic time-keeping clock. Designed for indoor use only.