Marine ABS Coastline Tide and Time Clock by Trintec

Tide Clock Features: Diameter 5.1/2 inches - Height 2.5" inches; Front access for battery installation, setting time & tide; Made in Canada and Manufactured with a splash resistant ABS clock case. Precision molded high impact black styrene case with mounting holes (not susceptible to corrosion and requires little maintenance) ; AA battery operated precision quartz time and tide movement. Scratch resistant acrylic lens. Secure locking screw. Excellent for boat cabins. This combination clock features a tide clock movement, which averages the lunar tide cycle. Note: The tide clock is calibrated for the East coast of the United States