This Rollball watch band with a curved solid end pieces perfectly fit the new 2019 Seiko 5 Sports re-born SRPD Series: Gold SRPE74, SRPD51, SRPD53, SRPD55, SRPD57, SRPD59, SRPD61, SRPD63, SRPD65, SRPD67, SRPD69, SRPD71, SRPD73, SRPD75, SRPD76, SRPD77, SRPD79, SRPD81, SRPD83 and SRPD85. The new "Rollball" Rally Sports Bracelet was inspired by the arcade game Skee-Ball and anchored by Seiko Chronograph watch. Unlike traditional rally bangles, this high-end Rollball has precise adjustable links details almost invisible. The bracelet features in Rally racing style holes to improve ventilation. Increased thickness and mild blending curved let the Rollball roll along your wrist comfortably. You can now get the look of vintage Seiko 6139-8020 Chronograph for your watch simply mods your watchband into an upgraded Rollball bracelet. The lug of this watch band was tapered into 18mm buckle size, added value on flexibility of using your original 18mm Seiko clasp back if you want. This item includes one pair of "Special curved" FAT spring bar (bended generic Seiko Dia. 2.0mm spring bar) to ensure a more secure connection. Accompany with V-Clasp double lock buttoned diver's clasp. V-Clasp was made from solid 316L stainless steel with extra 6 micro holes for flexible fine tune length adjustment. Featured in V shape safety lock, streamlined form & chamfer edged design to giving a more massive look. Chamfer double locks diver's buckle is ideal for watch band with thickness approximate 4.0 - 5.0mm thickness. Seiko 5 Sports re-born SRPD models. Today replaces your Seiko Divers into this unique aftermarket watch band.