Howard White Alloy Mainsprings JA-350
$34.95
JA-350
Size 18, factory # 55, width in mm 2.8, strength in mm 0.205, length inches 23-1/2, end HOLE
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Howard White Alloy Mainsprings JA-352
$34.95
JA-352
Size 16, factory # 328, width in mm 2.75, strength in mm 0.165, length inches 21-1/2, end HOLE
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Howard White Alloy Mainsprings JA-353
$34.95
JA-353
Size 16, factory # 329, width in mm 2.7, strength in mm 0.18, length inches 21, end T
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Howard White Alloy Mainsprings JA-354
$34.95
JA-354
Size 12, factory # 552, width in mm 1.8, strength in mm 0.15, length inches 19-1/2, end HOLE
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Howard White Alloy Mainsprings JA-355
$34.95
JA-355
Size 12, factory # 553, width in mm 1.8, strength in mm 0.16, length inches 19, end T
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Howard White Alloy Mainsprings JA-356
$34.95
JA-356
Size 10, factory # 796, width in mm 1.5, strength in mm 0.15, length inches 16, end HOOK
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