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Rockford Balance Staffs

Staff Measurements Explanation

A = Overall Height (Length)

B = Distance from Roller Seat to Pivot

F = Hairspring Collect Hole

G = Balance Arm Hole

H = Roller Hole

   

Rockford 18 Size Staff # 340

18 Size Rockford Factory # 340
Description:

Dimension: A 6.10 mm, B 3.80 mm, F 1.00 mm, G 1.38 mm, H 0.65 mm

22BB134
$18.00

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Rockford 18 Size Staff # 341

18 Size Rockford Factory # 341
Description:

Dimension: A 6.19 mm, B 3.87 mm, F 0.99 mm, G 1.38 mm, H 0.64 mm

22BB135
$18.00

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Rockford 18 Size Staff # 343

18 Size Rockford Factory # 343
Description:

Dimension: A 5.80 mm , B mm, F 0.99 mm, G 1.37 mm, H 0.64 mm

22BB137
$18.00

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Rockford 18 Size Staff # 880

18 Size Rockford Factory # 880
Description:

Dimension: A 6.09 mm, B 3.80 mm, F 0.93 mm, G 1.31 mm, H 0.1.15 mm

22BB139
$18.00

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Rockford 18 Size Staff # 344 New Style 342

18 Size Rockford Factory # 344/342
Description:

Dimension: A 6.98 mm, B 4.00 mm, F 0.92 mm, G 1.27 mm, H 0.64 mm

22BB136
$18.00

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Rockford 16 Size Staff # 729

16 Size Rockford Factory # 729
Description: Double Roller

Dimension: A 5.68 mm, B 3.01 mm, F 0.86 mm, G 1.26 mm, H 1.12 mm
A = Length, B = Distance Roller/Pivot, F = Hairspring Pivot, G = Balance Arm Hole, H = Roller Hole

22BB142
$18.00

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Rockford 16 Size Staff # 520

16 Size Rockford Factory # 520
Description: Short, Single Roller

Dimension: A 5.57 mm, B 3.03 mm, F 0.90 mm, G 1.26 mm, H 0.63 mm
A = Length, B = Distance Roller/Pivot, F = Hairspring Pivot, G = Balance Arm Hole, H = Roller Hole

22BB141
$18.00

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Rockford 16 Size Staff # 739

16 Size Rockford Factory # 739
Description:

Dimension: A 5.58 mm, B 3.04 mm, F 0.88 mm, G 1.23 mm, H 0.74 mm
A = Length, B = Distance Roller/Pivot, F = Hairspring Pivot, G = Balance Arm Hole, H = Roller Hole

22BB143
$18.00

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Rockford 16 Size Staff # 519

16 Size Rockford Factory # 519
Description:

Dimension: A 5.86 mm, B 2.99 mm, F 0.91 mm, G 1.28 mm, H 0.64 mm

22BB140
$18.00

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Rockford 16 Size Staff # 522

16 Size Rockford Factory # 522
Description:

Dimension: A 6.30 mm, B 3.74 mm, F 0.88 mm, G 1.25 mm, H 0.63 mm
A = Length, B = Distance Roller/Pivot, F = Hairspring Pivot, G = Balance Arm Hole, H = Roller Hole

22BB140A
$25.00

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List of Rockford 16 Size Staffs

# 519 Single Roller A:5.86 mm B:2.99 mm F:0.91 mm G: 1.28 mm H:0.64 mm
# 520 Single Roller A:5.57 mm B:3.03 mm F:0.90 mm G: 1.26 mm H:0.63 mm
# 739 Single Roller A:5.58 mm B:3.04 mm F:0.88 mm G: 1.23 mm H:0.74 mm
# 729 Double Roller A:5.68 mm B:3.01 mm F:0.86 mm G: 1.26 mm H:1.12 mm
A = Length, B = Distance Roller/Pivot, F = Hairspring Pivot, G = Balance Arm Hole, H = Roller Hole

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Otto Frei, Watch Parts Since 1930
Customers Entrance
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Mailing Address: PO BOX 796, Oakland Ca. 94604
Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA


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