Screw Lugs West Star Type, Yellow

Allows you to measure the size of spring bar without removing the strap. Simply place the spring bar gauge over where the spring bar attaches to the watch and match it. Metal

Size: 5/16” (8mm) 3/8” (10mm) 7/16” (18mm) 1/2” (14mm) 5/8” (17mm) 11/16” (18mm) 3/4” (20mm)