Seiko Presage x Automatic ft. Zen Garden aka Open Heart Men Formal Round Water Resistant Watch SSA443J1 SSA443 SSA-443 SSA-443J1 Discover the Seiko Presage SSA443J1 with a Zen Garden-inspired white dial and open-heart design. Powered by the automatic 4R39 movement with 41-hour power reserve. Features a stainless steel case, sapphire crystal, and deployment clasp. A blend of Japanese artistry and precision watchmaking. Caliber Number / Movement 4R39 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Sapphire crystal (dual-curved) Luminous Nil Case / Band Material Stainless steel case with stainless steel band (deployment clasp with push-button release) Water Resistance Water resistant Case Size Thickness: 12.5 mm Diameter: 41.8 mm Length: 48.4 mm Lug width: 20.0 mm Other Specifications Seiko Presage x Automatic ft. Zen Garden aka Open Heart Made in Japan Magnetic resistance (4,800 A/m) See-through case back Screw case back 24 jewels 24-hour display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)