Swiss Bergeon 7922 Spring Barrel Installation Tool for Closing Mainspring CoverEasily fit the spring barrel cover or barrel lid back onto the barrel after replacing or servicing the mainspring with this convenient tool. Simply put the barrel with mainspring on the platform, place cover and close top. Tool is designed to provide even pressure when closing or installing the barrel lid onto the spring barrel; protecting the barrel from damage. Tool measures 1" inch (25. 6mm) in diameter by 3 4" (19mm) inches tall. Made of strong

20mm Screws without Spare Blades

5mm/8mm P1-H1-3

elegant and fashion

Strap width: 20mm

200 pieces per box/per set

Hand-Windable:Yes

3 eyes，Alarm，Big date，Small second

Sizes available:

Size: around 20x19x40mm

The stem （included)

Tool is designed to provide even pressure when closing or installing the barrel lid onto the spring barrel

For ISA 8172