Citizen Eco-Drive x Analog ft. Calendrier Moonphase Men Formal Round 100m Water Resistant Watch BU0080-52X BU0080 BU-0080 Elevate your style with the Calendrier Moon Phase watch, blending sophistication with modern functionality. This 42mm stainless steel timepiece features a multi-dimensional dial with month/day/date indicators and moon phase complication. Powered by Citizen Eco-Drive technology and 100m water resistant. Caliber Number / Movement 8730 (Eco-Drive aka solar powered) Power Reserve / Accuracy Approximately 6 months when fully charged (+/-15 seconds per month) Crystal Sapphire crystal Luminous Luminous on hands and indexes Case / Band Material Stainless steel case with stainless steel band (deployment clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 11.4 mm Diameter: 42.2 mm Length: 49.7 mm Lug width: 21.0 mm Other Specifications Citizen Eco-Drive x Analog ft. Calendrier Moonphase Screw case back Day, date and month display Moon phase display Insufficient charge warning function Overcharge prevention function Regular timekeeping (analog display)