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17 New Bergeon Unbreakable Mainspring Winders

This is a new set of clock mainspring winders. This set of winders are for Nivaflex mainsprings. These winders come in a handy wooden storage box. These are made in Switzerland. The box measures approximately 6 1/16" x 4" x 2 1/8" (154 x 102 x 54 mm). There are 17 sizes included.

The sizes are:

• Size 00, 2 mm
• Size 0, 2.25 mm
• Size 1, 2.5 mm
• Size 2, 2.75 mm
• Size 3, 3 mm
• Size 4, 3.25 mm
• Size 5, 3.5 mm
• Size 6, 3.75 mm
• Size 7, 4 mm
• Size 8, 4.25 mm
• Size 9, 4.5 mm
• Size 10, 4.75 mm
• Size 11, 5 mm
• Size 12, 5.25 mm
• Size 13, 5.5 mm
• Size 14, 5.75 mm
• Size 15, 6 mm