TThe new Drive from Citizen AR, a laid back feel with classic structure, instantly adding style to any wardrobe. In a stainless steel case with navy blue chroma finishing, stainless steel bracelet and navy blue dial with chronograph and 12/24-hour time. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number H500. FEATURES MODEL: AT2440-51L MOVEMENT TECHNOLOGY: H500Eco-DrivePowered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM): 203.2 CASE WIDTH (MM): 45 LUG WIDTH (MM): 22 BAND TYPE: Bracelet Stainless Steel CASE MATERIAL: Silver-Tone Stainless Steel with ABS CRYSTAL: Mineral Crystal - Impact and shatter resistant CLASP: Fold Over Clasp with Push Buttons DIAL: Blue WATER-RESISTANCE: WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS1 Second Chronograph Measures up to 60 Minutes12/24 Hour TimeDate