Otto Frei.
Quality Jewelry Supplies for Generations - Since 1930
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Columbus and Aurora Staffs

AURORA WATCH CO. 1883 - 1892

COLUMBUS WATCH CO. 1874 - 1903
In 1903 Studebakers and South Bend Purchased Columbus.

   
Aurora 18 Size Balance Staff #1
$50.00
18S-AURORA-STAFF-1
Dimension: A 6.06 mm, F 0.96 mm, G 1.28 mm, H 0.61 mm
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Quantity   1 - 2     3+  
Price $50.00 $30.00

   
Aurora 18 Size Balance Staff #2
$50.00
18S-AURORA-STAFF-2
Dimension: A 6.19 mm, F 1.00 mm, G 1.54 mm, H 0.62 mm
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Quantity   1 - 2     3+  
Price $50.00 $30.00

   
Columbus 18 Size Balance Staff
$50.00
18S-COLUMBUS-STAFF
Dimension: A 5.76 mm, F 1.00 mm, G 1.43 mm, H 0.70 mm
Waist/Hub Diameter 1.95 mm Length 1.25 mm

Columbus 16 Size 15 Jewel Railroad W. King Special
takes a similar Staff, except for the Collet size.
The sample staff measured for the 16 size, had a collet diameter of 0.80 mm.
Put this staff in your lathe and reduce collet to 0.80,
then you have a staff for Columbus 16s R.W.K. Special
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Quantity   1 - 2     3+  
Price $50.00 $30.00


   
Columbus 16 Size Balance Staff #1
$50.00
16S-COLUMBUS-STAFF-1
Dimension: A 5.72 mm, F 0.76 mm, G 1.28 mm, H 0.72 mm
Waist/Hub Diameter 1.85, Length 0.70
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Quantity   1 - 2     3+  
Price $50.00 $30.00

   
Columbus 16 Size Balance Staff #2
$50.00
16S-COLUMBUS-STAFF-2
Dimension: A 5.72 mm, F 0.76 mm, G 1.43 mm, H 0.72 mm
Waist/Hub Diameter 1.85, Length 0.70
order.gif  checkout.gif
Quantity   1 - 2     3+  
Price $50.00 $30.00

   
Columbus 16 Size Balance Staff #3
$50.00
16S-COLUMBUS-STAFF-3
Dimension: A 5.30 mm, F 0.98mm, G 1.28mm, H 0.72 mm
Waist/Hub Diameter 1.85, Length 0.75
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Quantity   1 - 2     3+  
Price $50.00 $30.00

   
Columbus 6 Size Balance Staff
$50.00
6S-COLUMBUS-STAFF
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Quantity   1 - 2     3+  
Price $50.00 $30.00

www.ofrei.com
Otto Frei, Watch Parts Since 1930
Customers Entrance
126 2nd St. Oakland, California 94607
Mailing Address: PO BOX 796, Oakland Ca. 94604
Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA


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