IWC Aquatimer Chronograph "Charles Darwin" (Ref. IW379503) is a pre-owned automatic men's/unisex watch in very good condition, displaying only minor, intangible signs of wear. It features a commanding 44mm bronze case with a matching bronze bezel, a sleek black dial with no numerals, all protected by a sapphire crystal, and boasts an impressive 30 ATM water resistance. Powered by the IWC Caliber 89365 automatic movement with 35 jewels and a 68-hour power reserve, this timepiece is presented on a black rubber bracelet with a bronze buckle. It comes complete with its original box and papers.