Seiko Presage x Automatic ft. Japanese Garden aka Open Heart aka Sakura By Night Men Formal Round Water Resistant Watch SSA421J1 SSA421 SSA-421 SSA-421J1Discover the Seiko Presage Automatic Japanese Garden Sakura By Night SSA421J1. Features a captivating dial inspired by serene Japanese gardens at night, powered by the 4R39 automatic movement with 41-hour power reserve. Housed in a 41.8mm stainless steel case with dual-curved sapphire crystal and premium calfskin leather strap. A masterpiece of Japanese watchmaking artistry.Caliber Number / Movement4R39 (automatic with manual winding capacity)Power Reserve / AccuracyApproximately 41 hours (+45 to -35 seconds per day)CrystalSapphire crystal (dual-curved)LuminousNilCase / Band MaterialStainless steel case with leather (calfskin) band (three-fold clasp with push-button release)Water ResistanceWater resistantCase SizeThickness: 12.5 mmDiameter: 41.8 mmLength: 48.4 mmLug width: 20.0 mmOther SpecificationsSeiko Presage x Automatic ft. Japanese Garden aka Open Heart aka Sakura By NightMade in JapanSee-through case backScrew case back24 jewels24-hour displayStop second hand function (hacking mechanism)Regular timekeeping (analog display)