Take things up a notch with this Super Titanium™ CITIZEN Brycen timepiece. Includes a 1/20 second chronograph up to 60 minutes, 12/24 hour time, perpetual calendar, dual time, tachymeter, date and alarm. The Super Titanium™ case and bracelet is completed with a midnight blue dial. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E820. Product Details MODEL BL5558-58L 6/07/2018 MOVEMENT TECHNOLOGY E820 Eco-Drive Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM) 216 CASE WIDTH (MM) 43 LUG WIDTH (MM) 22 BAND TYPE Bracelet Super Titanium CASE MATERIAL Two-Tone Super Titanium Screw-Back Case Ion Plated Bezel CRYSTAL Mineral Crystal Impact and shatter resistant CLASP Fold Over Clasp with Hidden Push Buttons DIAL Blue Luminous Hands and Markers WATER-RESISTANCE WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS 1/20 Second Chronograph Measures up to 60 Minutes Perpetual Calendar Dual Time (Second Time Zone) 12/24 Hour Time Alarm Date