From my personal collection, one of the original, VERY heavy Seiko '5' Sports Scuba Divers - Model no. SNZH57 - 7S36-04N0, Stainless Steel Gents Wrist WatchBrand NameSeikoModel numberSNZH57Part NumberSNZH57J1Dial Window Material TypehardlexClasp Typefold-over-clasp-with-double-push-button-safetyCase Material Stainless SteelCase Diameter44x48 mm, without crown, lug to lugCase Thickness12 mmBand Material Stainless Steel, c.18cmLug Width22 mmBand ColourSilver/SteelDial ColourblackBeze
