Quality solid brass Time-Tide clock and Barometer Thermometer with Mahogany finish wood stand. 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 home or office to add classic nautical flair and functionality. Both nautical portholes feature 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.