Practical Max. 80mm Opening Watch Case Back Opener Remover Tool Large WrenchProduct Description Feature: Storage case included. Easily adjustable for various case dimensions. Designed for opening and fitting screw cases on waterproof watch. Specification: Material: Steel Max Opening: 80mm 12 Clamps: Round x 3 Flat x 3 Square x 3 Toothed x 3 Package includes: 1x Watch case opener with 12 bits 1x Storage box

lStrap Width: 22mm

only suitable for ETA2834/2836/2824 Movement

l316L stainless steel watch strap case and solid steel case back

100% Japan made

3/4in Thick

Inner lining material: suede cloth

Caliber: 3520

Line：slimtech

Quartz Movement Sunon PE90 3 Hands Date at 3 With Small Second @6@12 Movement

Compatible with: OS10 OS20 OS21 OS60 Movement

Outside Diameter: 12 3/4 Ligne or 29

Size: 8-1/4 Ligne