Citizen Promaster x Mechanical ft. Marine Men Casual Formal Tonneau Diver 200m Water Resistant Watch NY0121-09X NY0121 NY-0121 Discover the Citizen Promaster Marine, a high-performance diver watch with automatic movement, 42-hour power reserve, and 200m water resistance. Features a unidirectional rotating bezel, screw-down crown, and day/date display. Ideal for marine enthusiasts and professionals seeking precision and style. Caliber Number / Movement 8204 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 42 hours (+40 to -20 seconds per day) Crystal Mineral crystal Luminous Luminous on hands, indexes and bezel Case / Band Material Stainless steel case with synthetic rubber strap Water Resistance 200m / 660ft diver Case Size Diameter: 41.0 mm Other Specifications Citizen Promaster x Mechanical ft. Marine Unidirectional rotating bezel Screw-down crown Screw case back 21 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)