Bring sophistication to your day with the new CITIZEN Calendrier Moonphase, powered by any light with Eco-Drive. This timeless watch features analog month/day/date. Men's watch featured with two-tone stainless steel case and bracelet with cobalt blue dial. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number 8730. Model #: BU0054-52L Specifications Model BU0054-52L Dial Blue Case 44 mm Two-Tone Stainless Steel Lug 23 mm Band Bracelet Stainless Steel Deployment Clasp with Push Buttons Crystal Spherical Mineral Crystal Impact and shatter resistant, spherical-shaped crystal raised within the bezel Water-Resistance WR100/10Bar/333ft [Swimming, Showering & Snorkeling] Weight (g) 170.1 Movement 8730 Eco-Drive Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. Functions Analog Month/Day/Date Moonphase Indicator