Citizen Promaster x Eco-Drive ft. Ecozilla Men Casual Round Diver 300m Water Resistant Watch BJ8055-04X BJ8055 BJ-8055 Dive into the depths with confidence, backed by a robust timepiece designed for mixed gas diving. Featuring a non-reflective crystal, ratcheted bezel, and screw-down crown, this stainless steel watch is built to withstand the pressure. Plus, its Eco-Drive technology harnesses any light to power its movement, eliminating the need for battery replacements. Caliber Number / Movement B873 (solar Eco-Drive) Power Reserve / Accuracy Approximately 6 months when fully charged (+/-15 seconds per month) Crystal Mineral crystal (curved, anti-reflective coating) Luminous Luminous on dial, hands, indexes and bezel Case & Band Material Stainless steel case with synthetic rubber strap Water Resistance 300m / 30 bar scuba diving Case Size Diameter: 48.2 mm Other Specifications Citizen Promaster x Eco-Drive ft. Ecozilla Unidirectional rotating bezel Screw-down crown Screw case back Date display Insufficient charge warning function Overcharge prevention function Regular timekeeping (analog display)