Inspired by the historic and popular Bulova “Lunar Pilot” watch, this slim line matte silver case has a glass lens protecting the metal debossed dial with a temperature, hygrometer and subdial step second's gauge. The silent sweep seconds hand (no ticking) smoothly measures the passing time. Both the hour markers time hands have luminescent ink to reflect in low light. The accurate quartz movement and subdial seconds movement each use (1) AA battery (not included).