Citizen General x Mechanical ft. Classic Men Casual Formal Round 100m Water Resistant Watch NH8315-50A NH8315 NH-8315 Experience precision timekeeping with a 40-hour power reserve and exceptional accuracy in a stylish stainless steel case, featuring a sapphire crystal, 100m water resistance, and day and date display, perfect for those who value reliable and sophisticated watchmaking. Caliber Number / Movement 8200 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 40 hours (+40 to -20 seconds per day) Crystal Sapphire crystal Luminous Nil Case & Band Material Stainless steel case with metal band (deployment clasp with push-button release) Water Resistance 100m / 10 bar Case Size Diameter: 41.0 mm Other Specifications Citizen General x Mechanical ft. Classic See-through back case Screw case back 21 jewels Day and date display Regular timekeeping (analog display)