Quick Release Spring Bars for European Watch Straps (Pair) Lengths 12-22mm
These quick release spring bars are fitted to some European watch straps. The strap has a small gap up where it attaches to the watch head and the lever on the spring bars protrudes through the gap in the strap. Pulling the lever allows the spring bar to be compressed and the watch strap detached from the watch. Sold in pairs.
The length of the spring bar selected should match the measurement of the gap between the shoulders of the watch. This is most often the width of the watch strap. So if your strap is 20mm in width and fits snugly in your watch then the spring bar length to select is 20mm.