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0521 Watch Mainspring 1.30 x 0.10 x 241 (9 1/2") (Calibers in description)

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0521 Watch Mainspring 1.30 x 0.10 x 241 (9 1/2") (Calibers in description)

Dimensions:  1.30 x 0.10 x 241 (9 1/2")

End Type: Tongue End

Material: Swiss Made blue steel 

Calibers: 

AS 656, 657, 658, 659, 679, 755
EB 579
Junghans 91
Lanco 560, 862

$5.44

Original: $15.54

-65%
0521 Watch Mainspring 1.30 x 0.10 x 241 (9 1/2") (Calibers in description)—

$15.54

$5.44

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Description

Dimensions:  1.30 x 0.10 x 241 (9 1/2")

End Type: Tongue End

Material: Swiss Made blue steel 

Calibers: 

AS 656, 657, 658, 659, 679, 755
EB 579
Junghans 91
Lanco 560, 862