Frei & Borel Co.
Quality Jewelry Supplies for Generations - Since 1930
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Regular Mainsprings 1.70 mm to 2.10 mm Widths

   
Watch Mainspring # N1869
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.13 mm, Length in Inches: 16.5, Dennison Width: 8 1/2, Dennison Strength: 9
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # N2058
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.15 mm, Length in Inches: 18.5, Dennison Width: 9, Dennison Strength: 7
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # N210
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.18 mm, Length in Inches: 19.5, Dennison Width: 10, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # N214
$6.60
Metric Width: 2 mm, Metric Strength: 0.11 mm, Length in Inches: 19.5, Dennison Width: 11, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # N218
$6.60
Metric Width: 2.1 mm, Metric Strength: 0.18 mm, Length in Inches: 19.5, Dennison Width: 12, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # WV97
$6.60
Metric Width: 1.85 mm, Metric Strength: 0.075 mm, Length in Inches: 12.5, Dennison Width: 9 1/2, Dennison Strength: 13.5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # WV99
$6.60
Metric Width: 2 mm, Metric Strength: 0.07 mm, Length in Inches: 17.5, Dennison Width: 11, Dennison Strength: 14
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 115Z
$6.60
Metric Width: 2 mm, Metric Strength: 0.18 mm, Length in Inches: 20, Dennison Width: 11, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 812H
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 10.5, Dennison Width: 8, Dennison Strength: 12
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 113Z
$6.60
Metric Width: 2 mm, Metric Strength: 0.21 mm, Length in Inches: 21.5, Dennison Width: 11, Dennison Strength: 3
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 812K
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 11.5, Dennison Width: 8, Dennison Strength: 12
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

 
Regular Mainsprings 1.05 mm to 1.30 mm Widths
 
Regular Mainsprings 1.35 mm to 1.65 mm Widths
   
Watch Mainspring # 122R
$6.60
Metric Width: 2.1 mm, Metric Strength: 0.22 mm, Length in Inches: 18.5, Dennison Width: 12, Dennison Strength: 2
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 812Z
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 28.5, Dennison Width: 8, Dennison Strength: 12
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 811K
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 11.5, Dennison Width: 8, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 811M
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 12.5, Dennison Width: 8, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 811P
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 13.5, Dennison Width: 8, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 810H
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.11 mm, Length in Inches: 10.5, Dennison Width: 8, Dennison Strength: 10
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 810N
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.11 mm, Length in Inches: 13, Dennison Width: 8, Dennison Strength: 10
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # N186
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.12 mm, Length in Inches: 10.5, Dennison Width: 8, Dennison Strength: 9.5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 89P
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.12 mm, Length in Inches: 13.5, Dennison Width: 8, Dennison Strength: 9.5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # WV96
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.13 mm, Length in Inches: 15, Dennison Width: 8, Dennison Strength: 9
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 865T
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.16 mm, Length in Inches: 15, Dennison Width: 8, Dennison Strength: 6.5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 86R
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.17 mm, Length in Inches: 18.5, Dennison Width: 8, Dennison Strength: 6
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 835V
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.2 mm, Length in Inches: 16.25, Dennison Width: 8, Dennison Strength: 3.5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 83T
$6.60
Metric Width: 1.7 mm, Metric Strength: 0.21 mm, Length in Inches: 15.5, Dennison Width: 8, Dennison Strength: 3
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 8512F
$6.60
Metric Width: 1.75 mm, Metric Strength: 0.09 mm, Length in Inches: 9.375, Dennison Width: 8 1/2, Dennison Strength: 12
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 915C
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.06 mm, Length in Inches: 8.5, Dennison Width: 9, Dennison Strength: 15
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 911K
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 11.5, Dennison Width: 9, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 911M
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 12.5, Dennison Width: 9, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 911P
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 13.5, Dennison Width: 9, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 910K
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.11 mm, Length in Inches: 11.5, Dennison Width: 9, Dennison Strength: 10
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 910N
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.11 mm, Length in Inches: 13.5, Dennison Width: 9, Dennison Strength: 10
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 95X
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.18 mm, Length in Inches: 19.5, Dennison Width: 9, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 92R
$6.60
Metric Width: 1.8 mm, Metric Strength: 0.22 mm, Length in Inches: 18.5, Dennison Width: 9, Dennison Strength: 2
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 9511H
$6.60
Metric Width: 1.85 mm, Metric Strength: 0.1 mm, Length in Inches: 10.5, Dennison Width: 9 1/2, Dennison Strength: 11
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 912M
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.09 mm, Length in Inches: 12.5, Dennison Width: 9, Dennison Strength: 12
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 105U
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.18 mm, Length in Inches: 21, Dennison Width: 10, Dennison Strength: 5
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 104X
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.19 mm, Length in Inches: 19.5, Dennison Width: 10, Dennison Strength: 4
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 104Z
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.19 mm, Length in Inches: 22, Dennison Width: 10, Dennison Strength: 4
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 103X
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.21 mm, Length in Inches: 19.5, Dennison Width: 10, Dennison Strength: 3
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

   
Watch Mainspring # 102X
$6.60
Metric Width: 1.9 mm, Metric Strength: 0.22 mm, Length in Inches: 19.5, Dennison Width: 10, Dennison Strength: 2
 
Quantity   1 - 2    3 - 5    6 - 11    12+  
Price $6.60 $5.80 $5.60 $5.40

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Otto Frei and Jules Borel, Inc.
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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