Seiko Presage Prestige Line Mens Watch SPB307J1The story of Seiko began in 1881, when a 21 year old entrepreneur, Kintaro Hattori, opened a shop selling and repairing watches and clocks in central Tokyo. This Seiko Presage Prestige Line continues the tradition of expert craftmanship with this black dial SPB307J with LumiBrite hands and index(es). Featuring an automatic movement with manual winding, Caliber 6R21 and approx. 45 hours power reserve. The sapphire crystal features an anti-reflective coating on inner surface, complimented by a stop seconds hand function. The stainless steel (super hard coating) case measures, thickness: 12.2mm, diameter: 40.2mm and lug-to-lug: 47.4mm and is water resistant to 100m. This watch features a stainless steel bracelet with three-fold clasp with secure lock and stunning see-through case back.