CORSO The Citizen Corso collection, a combination of functional simplicity with a touch of timeless elegance is powered by any light with Eco-Drive Technology. This model features a rose gold-tone stainless steel case, sleek brown leather strap with coordinating black dial. Additionally a 1/5-second chronograph and date. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B642.BANDStrap DIALBlack, IndicesCASE SIZE (MM)43CASE MATERIALRose Gold-Tone, Stainless SteelWATER-RESISTANCEWR100/10Bar/333ft [Swimming, Showering & Snorkeling]CRYSTALMineral CrystalFUNCTIONSB642, 1/5 Second Chronograph Measures up to 60 Minutes, Date *This item is BRAND NEW and will come with the original box and papers. We are authorized CITIZEN dealers, which means you will receive the manufacturer's warranty with your purchase.