Video shows how it extends to fit the wrist snugger with the spring action it has where the two parts of the wristband fit. I have limited quantity.
1960s Black Rubber Rally Diver Watch Strap, 19mm Ends for Vintage Watch NOS
Smiths Stop Watch/Rally Timer Set, Serviced and Choice of Backplate
20mm TPU Rubber Black Tropical Sport Diver Rally Watch Strap
19mm TPU Rubber Black Tropical Sport Diver Rally Watch Strap
20mm Leather Rally Strap, Watch Band for Omega Diver 300M
Blue Bezel insert Seiko Rally 6119-7170 6119-8300 6119-7173 Diver Sport diver 5
