
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 5 Automatic.

Hand-verified for Seiko 5 Automatic (20mm lug width, standard lugs).


Seiko 5 Automatic 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 5 Automatic.
Lug Width & Architecture: The Seiko 5 Automatic features a 20mm lug width. Every strap listed above is matched to ensure structural clearance, spring-bar alignment, and visual balance.