Bergeon 7922 Watch 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

Length: 200 mm

Small Second Hand at 6

Requires small second hands:

Ronda 775-D6 Swiss Parts

SKU MODEL : AP 5230-30

Hand sizes: 70/120 (Hole size: 0

Ronda 585-3H-D3 (3 Hands

Package included: 1 Set(4pcs)

00mm screwdriver

Ronda 5020

8290 Chronograph Wheel Friction Spring Spare Parts For ETA 7750

50mm and the last tool contains a solid end and a concave end