Bring sophistication to your day with the CITIZEN Calendrier. This timeless watch features world time in 24 time zones. Men's watch featured with gold-tone stainless steel case and bracelet with black dial adorned with a diamond bezel. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number 8729. Product Details MODEL BU2082-56E 6/07/2018 MOVEMENT TECHNOLOGY 8729 Eco-Drive Ring Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM) 203.2 CASE WIDTH (MM) 44 LUG WIDTH (MM) 22 BAND TYPE Bracelet Stainless Steel CASE MATERIAL Gold-Tone Stainless Steel Diamond Accents Diamond Bezel CRYSTAL Anti-Reflective Mineral Crystal Impact and shatter resistant - anti-reflective coating deflects light CLASP Deployment Clasp with Push Buttons DIAL Black WATER-RESISTANCE WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS 12/24 Hour Time Analog Day/Date