Hairspring Tools

This tool allows installation of balance spring collets on the balance shaft with one end, and precise rotation of the collet with the other end. The hole diameter (to accomodate the balance shaft) is 0.70 millimeters on this (G) part. Available in other sizes, see below. These tools make adjustment of beat as simple as possible and are worth investing in.

FB-234
$55.44
 

Slip movement supplied with one .75 mm high-speed steel, oversized shank twist drill.

FB-718
$46.20
 

This Bergeon 5430 set of two hairspring collet tools is useful for rotating the collet on the balance staff, as well as a variety of other tasks. This is a useful set and is a recommended tool for the AWCI course Basic Watch Repair as levers for hands.

FB-773
$75.24
 

Width of levers is 1.7 mm, 0.2 mm larger than FB-773, which is 1.5 mm

BERG-30013
$83.28
 

Tool with holes for balances in nickel-plated brass and is 35 mm in diameter.

FB-130
$61.80
 

Tool with holes for balances in Delrin and is 36 mm in diameter.

FB-130-DELRIN
$52.78
 

The rounding part of the tool is jewelled and should be used with a lubricant. I've heard others say that this tool can be used with Diamantine or similar product to round the tips of balance pivots.

BERG-5482
$116.30
 

BERG-30108
$87.36
 

Enables the watchmaker to position the balance bridge with his balance-spring, while avoiding polluting the staff pivot with oil. Simply place the balance bridge screw hole through the brass spike and now you can easily make any corrections, inspections or repairs. Swiss made.

BERG-7995
$27.85
 

Just slip the cock over the pin tip with the balanced still attached. A balance tack is a fast and simple holder of collet that everyone should have.

FB-105
$15.25
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.28 mm.

1856-A
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.30 mm.

1856-B
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.32 mm.

1856-C
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.35 mm.

1856-D
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.38 mm.

1856-E
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.40 mm.

1856-F
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.42 mm.

1856-G
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.45 mm.

1856-H
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.48 mm.

1856-I
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.50 mm.

1856-J
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.52 mm.

1856-K
$69.95
 

Without removing the cock or balance, you now can straighten banking pins. The point will be used for verifying sideshake of rollers and horns. Size 0.55 mm.

1856-L
$69.95
 

Black knurled handle. Measures 98 mm in length.

MSA03.101-05
$29.60
 

Black knurled handle. Exterior diameter: 1.10, Hole diameter: 0.45 mm, Length: 95 mm.

MSA03.102-11
$45.00
 

Black knurled handle. Exterior diameter: 1.60, Hole diameter: 0.55 mm, Length: 95 mm.

MSA03.102-16
$45.00
 

Black knurled handle. Exterior diameter: 2.10, Hole diameter: 0.75 mm, Length: 95 mm.

MSA03.102-21
$45.00
 

Size: Width 2.50 MM, Length 1.15 MM. Nickel-plated brass knurled handle for firm grip.

MSA-03.103-C
$59.95
 

Size: Width 3.00 MM, Length 1.20 MM. Nickel-plated knurled handle for firm grip.

MSA-03.103-D
$59.95
 

Size: Width 1.80 MM, Length 0.95 MM. Nickel-plated knurled handle for firm grip.

MSA-03.103-E
$59.95
 

Allows stable support of the balance complete without damaging the hairspring when cleaning the impulse pin.

BERG-7990
$19.40
 

Screwdriver with blade to turn out ETACHRON Pitons. Fine adjustment of the spiral centering between the racket pins. Has small opening at the tip for adjusting the regulator pins. Overall length: 3.75 inches.

BERG-16918-TETC
$34.95
 

Screwdriver with blade to remove ETACHRON Pitons. Has small fork shaped tip for removing the stud block. Overall length: 3.75 inches.

BERG-16918-EETC
$39.95
 

Length: 105 mm.

FB-742
$52.20
 

Polystyrene stick with pointed end on one side and flat end on the other. Length is 135 mm with 4 mm diameter.

BERG-6436
$3.49