Citizen General x Mechanical ft. Crystal Seven C7 Reissue Men Casual Formal Round 50m Water Resistant Watch NH8390-71L NH8390 NH-8390 Experience precision timekeeping with this sleek mechanical watch, boasting a 40-hour power reserve, stainless steel case, and mineral crystal. Featuring a day and date display, hacking mechanism, and see-through case back, this timepiece combines style and functionality for the modern wearer. Caliber Number / Movement 8200 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 40 hours (+40 to -20 seconds per day) Crystal Mineral crystal (curved) Luminous Nil Case & Band Material Stainless steel case with metal band (three-fold clasp with push-button release) Water Resistance 50m / 5 bar Case Size Diameter: 40.2 mm Other Specifications Citizen General x Mechanical ft. Crystal Seven C7 Reissue See-through case back Screw case back 21 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)