Spring Bars

For accurate sizing of almost all Maxell, Renata, Panasonic and Sony button cells

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)