This beautiful Tide and Time Clock has a 4" dial, a 5.5" base and is 2.88" deep. This clock exhibits precise quartz movement and tide clock movement which averages the lunar tide cycle. It uses a AA battery and weighs 3lbs. 3oz. The tide sector is calibrated for the east coast of the United States. The fine chrome plating on the solid, forged brass case adds timeless depth and luster to the exterior, while the precision movements used inside maintain the traditional quality expected from any instrument carrying the Weems & Plath name. The screw bezel allows easy access to the components when the unit is mounted. It comes with complete instructions, mounting hardware, a fresh battery and a limited lifetime warranty.