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0464 Watch Mainspring 1.25 x 0.20 x 440 (17 1/4") (Calibers in description)

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0464 Watch Mainspring 1.25 x 0.20 x 440 (17 1/4") (Calibers in description)

Dimensions: 1.25 x 0.20 x 440 (17 1/4")

End Type: Double Brace

Material: Genuine IWC part 7303 (unbreakable)

Calibers:

IWC 73, 74, 77

$57.60

0464 Watch Mainspring 1.25 x 0.20 x 440 (17 1/4") (Calibers in description)—

$57.60

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Description

Dimensions: 1.25 x 0.20 x 440 (17 1/4")

End Type: Double Brace

Material: Genuine IWC part 7303 (unbreakable)

Calibers:

IWC 73, 74, 77