Otto Frei.
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Regular Mainsprings 1.70 mm to 2.70 mm Widths

Regular Swiss Mainspring All Have Tongue Ends
   
Watch Mainspring # N2058
$18.80
MS-N2058
Metric Width: 1.8 mm, Metric Strength: 0.15 mm, Length in Inches: 18.5
Dennison Width: 9, Dennison Strength: 7
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Watch Mainspring # N214
$18.80
MS-N214
Metric Width: 2 mm, Metric Strength: 0.11 mm, Length in Inches: 19.5
Dennison Width: 11, Dennison Strength: 5
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Watch Mainspring # N218
$18.80
MS-N218
Metric Width: 2.1 mm, Metric Strength: 0.18 mm, Length in Inches: 19.5
Dennison Width: 12, Dennison Strength: 5
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Watch Mainspring # WV97
$18.80
MS-WV97
Metric Width: 1.85 mm, Metric Strength: 0.075 mm, Length in Inches: 12.5
Dennison Width: 9 1/2, Dennison Strength: 13.5
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Watch Mainspring # WV99
$18.80
MS-WV99
Metric Width: 2 mm, Metric Strength: 0.07 mm, Length in Inches: 17.5
Dennison Width: 11, Dennison Strength: 14
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Watch Mainspring # 115Z
$18.80
MS-115Z
Metric Width: 2 mm, Metric Strength: 0.18 mm, Length in Inches: 20
Dennison Width: 11, Dennison Strength: 5
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Watch Mainspring # 812H
$18.80
MS-812H
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 10.5
Dennison Width: 8, Dennison Strength: 12
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 102X
$18.80
MS-102X
Metric Width: 1.9 mm, Metric Strength: 0.22 mm, Length in Inches: 19.5
Dennison Width: 10, Dennison Strength: 2
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Watch Mainspring # 113Z
$18.80
MS-113Z
Metric Width: 2 mm, Metric Strength: 0.21 mm, Length in Inches: 21.5
Dennison Width: 11, Dennison Strength: 3
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Watch Mainspring # 812K
$18.80
MS-812K
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 11.5
Dennison Width: 8, Dennison Strength: 12
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 122R
$18.80
MS-122R
Metric Width: 2.1 mm, Metric Strength: 0.22 mm, Length in Inches: 18.5
Dennison Width: 12, Dennison Strength: 2
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Watch Mainspring # 812Z
$18.80
MS-812Z
Metric Width: 1.7 mm, Metric Strength: 0.09 mm, Length in Inches: 28.5
Dennison Width: 8, Dennison Strength: 12
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 811K
$18.80
MS-811K
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 11.5
Dennison Width: 8, Dennison Strength: 11
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 811M
$18.80
MS-811M
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 12.5
Dennison Width: 8, Dennison Strength: 11
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 811P
$18.80
MS-811P
Metric Width: 1.7 mm, Metric Strength: 0.1 mm, Length in Inches: 13.5
Dennison Width: 8, Dennison Strength: 11
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 810H
$18.80
MS-810H
Metric Width: 1.7 mm, Metric Strength: 0.11 mm, Length in Inches: 10.5
Dennison Width: 8, Dennison Strength: 10
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 810N
$18.80
MS-810N
Metric Width: 1.7 mm, Metric Strength: 0.11 mm, Length in Inches: 13, Dennison Width: 8
Dennison Strength: 10
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # N186
$18.80
MS-N186
Metric Width: 1.7 mm, Metric Strength: 0.12 mm, Length in Inches: 10.5
Dennison Width: 8, Dennison Strength: 9.5
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Watch Mainspring # 89P
$18.80
MS-89P
Metric Width: 1.7 mm, Metric Strength: 0.12 mm, Length in Inches: 13.5
Dennison Width: 8, Dennison Strength: 9.5
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # WV96
$18.80
MS-WV96
Metric Width: 1.7 mm, Metric Strength: 0.13 mm, Length in Inches: 16
Dennison Width: 8, Dennison Strength: 9
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Watch Mainspring # 86R
$18.80
MS-86R
Metric Width: 1.7 mm, Metric Strength: 0.17 mm, Length in Inches: 18.5
Dennison Width: 8, Dennison Strength: 6
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 835V
$18.80
MS-835V
Metric Width: 1.7 mm, Metric Strength: 0.2 mm, Length in Inches: 16.25
Dennison Width: 8, Dennison Strength: 3.5
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 83T
$18.80
MS-83T
Metric Width: 1.7 mm, Metric Strength: 0.21 mm, Length in Inches: 15.5
Dennison Width: 8, Dennison Strength: 3
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 8512F
$18.80
MS-8512F
Metric Width: 1.75 mm, Metric Strength: 0.09 mm, Length in Inches: 9.375
Dennison Width: 8 1/2, Dennison Strength: 12
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60

   
Watch Mainspring # 915C
$18.80
MS-915C
Metric Width: 1.8 mm, Metric Strength: 0.06 mm, Length in Inches: 8.5
Dennison Width: 9, Dennison Strength: 15
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Watch Mainspring # 911K
$18.80
MS-911K
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 11.5
Dennison Width: 9, Dennison Strength: 11
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Watch Mainspring # 911M
$18.80
MS-911M
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 12.5
Dennison Width: 9, Dennison Strength: 11
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Watch Mainspring # 911P
$18.80
MS-911P
Metric Width: 1.8 mm, Metric Strength: 0.1 mm, Length in Inches: 13.5
Dennison Width: 9, Dennison Strength: 11
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Watch Mainspring # 910K
$18.80
MS-910K
Metric Width: 1.8 mm, Metric Strength: 0.11 mm, Length in Inches: 11.5
Dennison Width: 9, Dennison Strength: 10
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Watch Mainspring # 910N
$18.80
MS-910N
Metric Width: 1.8 mm, Metric Strength: 0.11 mm, Length in Inches: 13.5
Dennison Width: 9, Dennison Strength: 10
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Watch Mainspring # 95X
$18.80
MS-95X
Metric Width: 1.8 mm, Metric Strength: 0.18 mm, Length in Inches: 19.5
Dennison Width: 9, Dennison Strength: 5
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Watch Mainspring # 92R
$18.80
MS-92R
Metric Width: 1.8 mm, Metric Strength: 0.22 mm, Length in Inches: 24.5
Dennison Width: 9, Dennison Strength: 2
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Watch Mainspring # 9511H
$18.80
MS-9511H
Metric Width: 1.85 mm, Metric Strength: 0.1 mm, Length in Inches: 10.5
Dennison Width: 9 1/2, Dennison Strength: 11
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Watch Mainspring # 912M
$18.80
MS-912M
Metric Width: 1.9 mm, Metric Strength: 0.09 mm, Length in Inches: 12.5
Dennison Width: 9, Dennison Strength: 12
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Watch Mainspring # 105U
$18.80
MS-105U
Metric Width: 1.9 mm, Metric Strength: 0.18 mm, Length in Inches: 21
Dennison Width: 10, Dennison Strength: 5
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Watch Mainspring # 104X
$18.80
MS-104X
Metric Width: 1.9 mm, Metric Strength: 0.19 mm, Length in Inches: 19.5
Dennison Width: 10, Dennison Strength: 4
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Watch Mainspring # 104Z
$18.80
MS-104Z
Metric Width: 1.9 mm, Metric Strength: 0.19 mm, Length in Inches: 22
Dennison Width: 10, Dennison Strength: 4
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Watch Mainspring # 103X
$18.80
MS-103X
Metric Width: 1.9 mm, Metric Strength: 0.21 mm, Length in Inches: 19.5
Dennison Width: 10, Dennison Strength: 3
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Watch Mainspring # 164Z
$18.80
MS-164Z
Metric Width: 2.5 mm, Metric Strength: 0.19 mm, Length in Inches: 20
Dennison Width: 16, Dennison Strength: 4
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Watch Mainspring # 165Z
$18.80
MS-165Z
Metric Width: 2.5 mm, Metric Strength: 0.18 mm, Length in Inches: 20
Dennison Width: 16, Dennison Strength: 5
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Watch Mainspring # 183Z
$18.80
MS-183Z
Metric Width: 2.7 mm, Metric Strength: 0.21 mm, Length in Inches: 23 1/2
Dennison Width: 18, Dennison Strength: 3
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Regular Mainsprings 1.05 mm to 1.15 mm Widths
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.20 mm Wide
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.25 mm Wide
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.30 mm Wide
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.35 mm to 1.65 mm Widths
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.50 mm Wide
Regular Swiss Mainspring All Have Tongue Ends
 
Regular Mainsprings 1.6 mm to 1.65 mm Widths
Regular Swiss Mainspring All Have Tongue Ends


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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