1378 Watch Mainspring 3.20 x 0.16 x 641 (25 1/4")(Calibers in description)
1378 Watch Mainspring 3.20 x 0.16 x 641 (25 1/4")(Calibers in description) is backordered and will ship as soon as it is back in stock.
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1378 Watch Mainspring 3.20 x 0.16 x 641 (25 1/4")(Calibers in ...
Description
Description
Dimensions: 3.20 x 0.16 x 641 (25 1/4")
End Type: Motor Barrel
Material: Swiss Made Blue Steel
Calibers:
Hamilton mainspring # 232, Hamilton 936 (serial # 987001 & up), Hamilton 937 (serial # 652901 & up), Hamilton 940 (serial # 594501 & up), Hamilton 941 (serial # 623001 & up), Hamilton 942, Hamilton 943, Hamilton 944 new style (serial # 479001 & up), Hamilton 946 new style (serial # 479001 & up)
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