Otto Frei.
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Regular Mainsprings 1.35 mm to 1.65 mm Widths

Regular Swiss Mainspring All Have Tongue Ends
   
Watch Mainspring # 5516W
$18.80
MS-5516W
Metric Width: 1.45 mm, Metric Strength: 0.05 mm, Length in Inches: 8.5, Dennison Width: 5 1/2, Dennison Strength: 16
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Watch Mainspring # 4515W
$18.80
MS-4515W
Metric Width: 1.35 mm, Metric Strength: 0.06 mm, Length in Inches: 6.25, Dennison Width: 4 1/2, Dennison Strength: 15
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Watch Mainspring to fit Peseux 340
$18.80
Metric Width: 1.40 mm, Metric Strength: 0.06 mm, Length in Millimeters: 200, Barrel Diameter 5.5

Used in many watches, this is just a small list Alpina 471, AS 1012, AS 1127, AS 1406, AS 1467, AS 1582 , AS 1676, AS 1677, AS 1719, AS 1777, Benrus AE, EB, Q, Other makes Bulova, Elgin and many more.
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Quantity   1 - 2     3 - 5     6 - 11     12+  
Price $18.80 $18.20 $17.90 $17.60


   
Watch Mainspring # 5512E
$18.80
MS-5512E
Metric Width: 1.45 mm, Metric Strength: 0.09 mm, Length in Inches: 9.5, Dennison Width: 5 1/2, Dennison Strength: 12
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Watch Mainspring # N1598
$18.80
MS-N1598
Metric Width: 1.35 mm, Metric Strength: 0.06 mm, Length in Inches: 6.5, Dennison Width: 4 1/2, Dennison Strength: 15
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Watch Mainspring # 55105R
$18.80
MS-55105R
Metric Width: 1.45 mm, Metric Strength: 0.105 mm, Length in Inches: 14.5, Dennison Width: 5 1/2, Dennison Strength: 10.5
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Watch Mainspring # 45135AA
$18.80
MS-45135AA
Metric Width: 1.35 mm, Metric Strength: 0.065 mm, Length in Inches: 7, Dennison Width: 4 1/2, Dennison Strength: 14.5
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Watch Mainspring # N1696
$18.80
MS-N1696
Metric Width: 1.45 mm, Metric Strength: 0.11 mm, Length in Inches: 12.5
Dennison Width: 5 1/2, Dennison Strength: 10
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Watch Mainspring # 4514H
$18.80
MS-4514H
Metric Width: 1.35 mm, Metric Strength: 0.07 mm, Length in Inches: 10.5, Dennison Width: 4 1/2, Dennison Strength: 14
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Watch Mainspring # 5510X
$18.80
MS-5510X
Metric Width: 1.45 mm, Metric Strength: 0.11 mm, Length in Inches: 19, Dennison Width: 5 1/2, Dennison Strength: 10
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Watch Mainspring # 4514C
$18.80
MS-4514C
Metric Width: 1.35 mm, Metric Strength: 0.07 mm, Length in Inches: 8.5, Dennison Width: 4 1/2, Dennison Strength: 14
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Watch Mainspring # WV98
$18.80
MS-WV98
Metric Width: 1.45 mm, Metric Strength: 0.11 mm, Length in Inches: 20
Dennison Width: 5 1/2, Dennison Strength: 10
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Watch Mainspring # N1587
$18.80
MS-N1587
Metric Width: 1.35 mm, Metric Strength: 0.075 mm, Length in Inches: 7.5, Dennison Width: 4 1/2, Dennison Strength: 13.5
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Watch Mainspring # 5535R
$18.80
MS-5535R
Metric Width: 1.45 mm, Metric Strength: 0.2 mm, Length in Inches: 14.5, Dennison Width: 5 1/2, Dennison Strength: 3.5
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Watch Mainspring # 4513F
$18.80
MS-4513F
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 10, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513G
$18.80
MS-4513G
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 10.25, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513H
$18.80
MS-4513H
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 10.5, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513AA
$18.80
MS-4513AA
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 7, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513C
$18.80
MS-4513C
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 8.5, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513D
$18.80
MS-4513D
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 9, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 4513E
$18.80
MS-4513E
Metric Width: 1.35 mm, Metric Strength: 0.08 mm, Length in Inches: 9.5, Dennison Width: 4 1/2, Dennison Strength: 13
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Watch Mainspring # 459S
$18.80
MS-459S
Metric Width: 1.35 mm, Metric Strength: 0.12 mm, Length in Inches: 12.5
Dennison Width: 4 1/2, Dennison Strength: 9.5
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Watch Mainspring # 4595P
$18.80
MS-4595P
Metric Width: 1.35 mm, Metric Strength: 0.12 mm, Length in Inches: 13.5
Dennison Width: 4 1/2, Dennison Strength: 9.75
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Watch Mainspring # 458R
$18.80
MS-458R
Metric Width: 1.35 mm, Metric Strength: 0.14 mm, Length in Inches: 14.5
Dennison Width: 4 1/2, Dennison Strength: 8
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Watch Mainspring # 4575V
$24.00
MS-4575V
Metric Width: 1.35 mm, Metric Strength: 0.145 mm, Length in Inches: 16
Dennison Width: 4 1/2, Dennison Strength: 7.5
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Watch Mainspring # 4565T
$18.80
MS-4565T
Metric Width: 1.35 mm, Metric Strength: 0.16 mm, Length in Inches: 15
Dennison Width: 4 1/2, Dennison Strength: 6.5
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Watch Mainspring # 515A
$18.80
MS-515A
Metric Width: 1.4 mm, Metric Strength: 0.06 mm, Length in Inches: 7.5
Dennison Width: 5, Dennison Strength: 15
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Watch Mainspring # 515C
$18.80
MS-515C
Metric Width: 1.4 mm, Metric Strength: 0.06 mm, Length in Inches: 8.5
Dennison Width: 5, Dennison Strength: 15
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Watch Mainspring # 514K
$18.80
MS-514K
Metric Width: 1.4 mm, Metric Strength: 0.07 mm, Length in Inches: 11.5
Dennison Width: 5, Dennison Strength: 14
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Watch Mainspring # 514A
$18.80
MS-514A
Metric Width: 1.4 mm, Metric Strength: 0.07 mm, Length in Inches: 7.5
Dennison Width: 5, Dennison Strength: 14
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Watch Mainspring # 514C
$18.80
MS-514C
Metric Width: 1.4 mm, Metric Strength: 0.07 mm, Length in Inches: 8.5
Dennison Width: 5, Dennison Strength: 14
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Watch Mainspring # 514E
$18.80
MS-514E
Metric Width: 1.4 mm, Metric Strength: 0.07 mm, Length in Inches: 9.5
Dennison Width: 5, Dennison Strength: 14
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Watch Mainspring # 513H
$18.80
MS-513H
Metric Width: 1.4 mm, Metric Strength: 0.08 mm, Length in Inches: 10.5
Dennison Width: 5, Dennison Strength: 13
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Watch Mainspring # 513C
$18.80
MS-513C
Metric Width: 1.4 mm, Metric Strength: 0.08 mm, Length in Inches: 8.5
Dennison Width: 5, Dennison Strength: 13
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Watch Mainspring # 513E
$18.80
MS-513E
Metric Width: 1.4 mm, Metric Strength: 0.08 mm, Length in Inches: 9.5
Dennison Width: 5, Dennison Strength: 13
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Watch Mainspring # 512H
$18.80
MS-512H
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 10.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 512K
$18.80
MS-512K
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 11.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 512M
$18.80
MS-512M
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 12.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 512P
$18.80
MS-512P
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 13.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 512S
$18.80
MS-512S
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 14.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 512C
$18.80
MS-512C
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 8.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 512E
$18.80
MS-512E
Metric Width: 1.4 mm, Metric Strength: 0.09 mm, Length in Inches: 9.5
Dennison Width: 5, Dennison Strength: 12
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Watch Mainspring # 511H
$18.80
MS-511H
Metric Width: 1.4 mm, Metric Strength: 0.1 mm, Length in Inches: 10.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 511K
$18.80
MS-511K
Metric Width: 1.4 mm, Metric Strength: 0.1 mm, Length in Inches: 11.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 511M
$18.80
MS-511M
Metric Width: 1.4 mm, Metric Strength: 0.1 mm, Length in Inches: 12.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 511P
$18.80
MS-511P
Metric Width: 1.4 mm, Metric Strength: 0.1 mm, Length in Inches: 13.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 511E
$18.80
MS-511E
Metric Width: 1.4 mm, Metric Strength: 0.1 mm, Length in Inches: 9.5
Dennison Width: 5, Dennison Strength: 11
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Watch Mainspring # 510H
$18.80
MS-510H
Metric Width: 1.4 mm, Metric Strength: 0.11 mm, Length in Inches: 10.5
Dennison Width: 5, Dennison Strength: 10
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Watch Mainspring # 510K
$18.80
MS-510K
Metric Width: 1.4 mm, Metric Strength: 0.11 mm, Length in Inches: 11.5
Dennison Width: 5, Dennison Strength: 10
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Watch Mainspring # 510M
$18.80
MS-510M
Metric Width: 1.4 mm, Metric Strength: 0.11 mm, Length in Inches: 12.5
Dennison Width: 5, Dennison Strength: 10
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Watch Mainspring # 510P
$18.80
MS-510P
Metric Width: 1.4 mm, Metric Strength: 0.11 mm, Length in Inches: 13.5
Dennison Width: 5, Dennison Strength: 10
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Watch Mainspring # 510E
$18.80
MS-510E
Metric Width: 1.4 mm, Metric Strength: 0.11 mm, Length in Inches: 9.5
Dennison Width: 5, Dennison Strength: 10
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Watch Mainspring # 595M
$18.80
MS-595M
Metric Width: 1.4 mm, Metric Strength: 0.12 mm, Length in Inches: 12.5, Dennison Width: 5, Dennison Strength: 9.5
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Watch Mainspring # 58Z
$18.80
MS-58Z
Metric Width: 1.4 mm, Metric Strength: 0.14 mm, Length in Inches: 22, Dennison Width: 5, Dennison Strength: 8
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Watch Mainspring # 57R
$18.80
MS-57R
Metric Width: 1.4 mm, Metric Strength: 0.15 mm, Length in Inches: 18.5, Dennison Width: 5, Dennison Strength: 7
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Watch Mainspring # 6514F
$18.80
MS-6514F
Metric Width: 1.55 mm, Metric Strength: 0.07 mm, Length in Inches: 10, Dennison Width: 6 1/2, Dennison Strength: 14
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Watch Mainspring # 565X
$18.80
MS-565X
Metric Width: 1.4 mm, Metric Strength: 0.16 mm, Length in Inches: 19, Dennison Width: 5, Dennison Strength: 6.5
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Watch Mainspring # 6514C
$18.80
MS-6514C
Metric Width: 1.55 mm, Metric Strength: 0.07 mm, Length in Inches: 8.5, Dennison Width: 6 1/2, Dennison Strength: 14
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Watch Mainspring # 55R
$18.80
MS-55R
Metric Width: 1.4 mm, Metric Strength: 0.18 mm, Length in Inches: 18.5, Dennison Width: 5, Dennison Strength: 5 For Gruen V1, V1 1/2, V2, V2 1/2, V3, V4, V7
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Watch Mainspring # 6513J
$18.80
MS-6513J
Metric Width: 1.55 mm, Metric Strength: 0.08 mm, Length in Inches: 11, Dennison Width: 6 1/2, Dennison Strength: 13
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Watch Mainspring # 54V
$18.80
MS-54V
Metric Width: 1.4 mm, Metric Strength: 0.19 mm, Length in Inches: 16.5, Dennison Width: 5, Dennison Strength: 4
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Watch Mainspring # 65115
$18.80
MS-65115
Metric Width: 1.55 mm, Metric Strength: 0.095 mm, Length in Inches: 12.25, Dennison Width: 6 1/2, Dennison Strength: 11.5
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Watch Mainspring # 1688
$18.80
MS-1688
Metric Width: 1.4 mm, Metric Strength: 0.23 mm, Length in Inches: 13.5
Dennison Width: 5, Dennison Strength: 1
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Watch Mainspring # 6511J
$18.80
MS-6511J
Metric Width: 1.55 mm, Metric Strength: 0.1 mm, Length in Inches: 11, Dennison Width: 6 1/2, Dennison Strength: 11
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Watch Mainspring # 6511S
$18.80
MS-6511S
Metric Width: 1.55 mm, Metric Strength: 0.1 mm, Length in Inches: 14.125, Dennison Width: 6 1/2, Dennison Strength: 11
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Watch Mainspring # 759Z
$18.80
MS-759Z
Metric Width: 1.65 mm, Metric Strength: 0.13 mm, Length in Inches: 28.5, Dennison Width: 7 1/2, Dennison Strength: 9
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Otto Frei, Watch Parts Since 1930
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Mailing Address: PO BOX 796, Oakland Ca. 94604
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