If you need an affordable time and tide clock that can withstand the outdoor elements, the Blue Water Time and Tide Clock is the answer. Housed in a black, splash-resistant resin case, this rugged quartz clock accurately displays both time and tide. The red hand points to the rising or falling tide. The time is indicated with black hour, minute, and second hands.
 
Battery-operated quartz movement
Tide sector averages the lunar tide cycle for the Atlantic Ocean
Note: Tide calibration for other tidal bodies of water will need to be reset frequently, e.g., Pacific Ocean & Gulf of Mexico
Precision molded, high-impact black resin construction
O-ring seal for splash resistance
Requires little maintenance
Scratch & glare resistant matte-finish bezel
Scratch-resistant glass crystal
Hinged bezel with knurled brass locking lug for easy access to movement & battery
Secure battery clip for open ocean security
Battery, instructions & mounting hardware included
Lifetime warranty