This is the near-legendary Seiko Pro Diver watch band, straight from Seiko. It is not an imitation. It is the real thing. While Seiko makes this strap for the Seiko Men's Automatic Dive Watch #SKX173, it fits other Seiko models (see below) and other brands with 22mm lug widths.   Seiko Pro Diver Watch Band          Genuine Seiko replacement watch band        This watch strap designed for Seiko Men's Dive Watch Models         · SHC033  · SKX173   · SKX001  · SPW001        The well-known Pro Diver strap        Fits watches with 22mm lug width (see chart).        Extra-long length allows it fit large wrists        Includes Seiko stainless-steel buckle (no substitutions)     Seiko part #4F24ZZ