Watch Crowns for X-Large and Pocket Watches

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)

(Assortment of 76 pcs) Head size: 3mm to 6mm Length: 20mm to 28mm White Rose Gold and Yellow