Citizen Men's BM8404-59L Eco-Drive "Corso" Two-Tone Stainless Steel Watch This Citizen "Corso" watch is crafted in two-tone stainless steel and is equipped with Eco-Drive, which charges in natural sunlight or indoor light. Japanese Quartz movement with analog display Protective mineral crystal dial window Features max power reserve of 180 days, low-charge warning of four days, quick-start ability, day and date windows Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving