The best-selling Perpetual Chrono A-T watch from CITIZEN® has been updated with new features without losing it's original appeal that made it stand out from the crowd. Some of those features include our proprietary Eco-Drive technology, so the watch will never need a battery, as well as atomic timekeeping in 24 time zones, a chronograph, perpetual calendar, and power reserve indicator.The two-tone stainless steel bracelet is offset by the black dial with gold-tone accents for a sleek, sophisticated look that won’t be out of place in the boardroom, at the beach, or anywhere in-between. MODEL CB5894-50E MOVEMENT E660 TECHNOLOGY Eco-Drive Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. CASE SIZE (MM) 42 LUG WIDTH (MM) 23.5 CRYSTAL Anti-Reflective Sapphire Crystal Impact and shatter resistant - anti-reflective coating deflects light WATER-RESISTANCE WR200/20Bar/666ft (Swimming, Marine Sports) DIAL Black Gold Accents Luminous Hands and Markers STRAP TYPE Bracelet Stainless Steel CASE MATERIAL Two-Tone Stainless Steel ADDITIONAL FUNCTIONS Synchronized to Atomic Clock for Superior Accuracy 1-Second Chronograph Measures up to 60 Minutes Perpetual Calendar 12/24-Hour Time Alarm Power Reserve Indicator Day / Date