Seiko Presage x Automatic ft. Craftmanship Series Men Formal Tonneau 50m Water Resistant Watch SPB537J1 SPB537 SPB-537 SPB-537J1Discover the Seiko Presage SPB537J1, featuring a distinctive tonneau-shaped case that stands apart in the collection. It showcases a flawless, hand-fired enamel dial crafted by master artisans Mitsuru Yokosawa and Kazunori Uchiyama for a unique, luminous finish. The design, with Roman numerals and a railway minute track, is inspired by Seiko 1895 Timekeeper pocket watch. Powered by the in-house caliber 6R5H, it delivers a 72-hour power reserve, 50m water resistance, and is available as a continuous production model.Caliber Number / Movement6R5H (automatic with manual winding capacity)Power Reserve / AccuracyApproximately 72 hours (+25 to -15 seconds per day)CrystalSapphire crystal (dual-curved, anti-reflective coating)LuminousNilCase / Band MaterialStainless steel (super hard coating) case, enamel dial with stainless steel band (three-fold clasp with push-button release)Water Resistance50m / 5 barCase SizeThickness: 12.5 mmDiameter: 35.9 mmLength: 46.0 mmLug width: 20.0 mmOther SpecificationsSeiko Presage x Automatic ft. Craftmanship SeriesMade in JapanMagnetic resistance (4,800 A/m)See-through case back24 jewels24-hour displayStop second hand function (hacking mechanism)Regular timekeeping (analog display)