This beautiful brass nautical Roman numeral clock. Brass porthole case is designed to withstand the toughest marine outdoor conditions. The solid brass case has been doubly protected with a zirconium plating based on chromium plating. It will never tarnish or discolor. This quality brass clock would be an excellent choice for any marine vessel to add classic nautical flair and functionality. It features a depth of 3.5". The clock works with a quartz movement which requires one AA battery. The movement is accessed through the working, hinged porthole. The clock case features four mounting holes on the base flange and comes with four brass screws. We carry rosewood clock plaques and brass engraving name plates to personalize it. We also carry walnut finish clock stands to fit