This workhorse Bluewater Quartz Clock is low-maintenance and constructed of black, splash-resistant resin. It is perfect for mounting in the boat cockpit or any place that is exposed to the weather. Battery-operated quartz clock movement Precision molded, high-impact black resin case 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 AA battery, instructions & mounting hardware included Lifetime warranty