
Crafted from industrial-grade fluoroelastomer, 20mm FKM rubber straps provide superior heat, UV, and salt resistance with zero lint attraction—the ultimate sport companion for the Seiko Prospex 1965 Heritage Diver S.
Hand-verified for Seiko Prospex 1965 Heritage Diver S (20mm lug width, standard lugs).


Seiko Prospex 1965 Heritage Diver S FKM Rubber Strap Fitment Guide: Crafted from industrial-grade fluoroelastomer, 20mm FKM rubber straps provide superior heat, UV, and salt resistance with zero lint attraction—the ultimate sport companion for the Seiko Prospex 1965 Heritage Diver S.
Lug Width & Architecture: The Seiko Prospex 1965 Heritage Diver S features a 20mm lug width. Every strap listed above is matched to ensure structural clearance, spring-bar alignment, and visual balance.