Bergeon 3010 Watch Crown, Case and Hand Tube Tightener Watchmaker Swiss ToolBergeon tool for tightening crown, case and watch hand tubes. This tool provides even pressure around the tube to ensure that they fit firmly and evenly on the hand arbor or crown. Supplied with 18 interchangeable collets; sizes include: . 40, . 45, . 50, . 55, . 60, . 70, 1. 10, 1. 20, 1. 30, 1. 40, 1. 50, 1. 60, 1. 70, 1. 80, 2. 00, 2. 20, 2. 40, and 2. 60mm. Watch crown, case and hand tube tightener 18 collets from sizes: . 40 2. 60mm Compresses

Commonly used when repairing or replacing mainspring

PVD copper color shell + black stripe ring

7 x 30mm / 1

Size: 35x25

Suitable for sets:

70mm{NOT included)

Attached Stem: 065-379

B-SM Swiss Made

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Removable top lens gives the option to use as a 5x loupe or 12x or 15X combined magnification

7mm Teeth 3-Die Watch Back Case Opener Wrench Repair Tool For Corum

Made of premium material