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Watch Case Part Assortments

Watch Part Assortments

Findings Assortments

    Battery & Parts Assortments

      Clock Part Assortments

        Crystal Assortments

          Movement Assortments

          Pocket Watch Parts Assortments

            Watch Band & Parts Assortments

              Batteries

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              General Purpose Batteries

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              Brand Specific Crystals

              Unfinished Crystal Blanks

              Mineral Glass Crystals

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                  Crystals with Colored Trim

                    Dial Magnifiers

                      Finished Chains

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                      Findings Assortments

                        Earring Findings

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                              Clasps & Connectors

                              Foilbacks

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                                            Watch Parts by Case & Caliber

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                                            Generic Watch Case Parts

                                            Pocket Watch Parts

                                              JBC Legacy Watch Parts Database

                                              Tools

                                              Sold Out

                                              258-571

                                              Mainspring - 258-571

                                              Sold Out

                                              This page is for information only. We can no longer supply this item. If we have a recommended replacement item, it will be provided in the product description.

                                              MAINSPRING

                                              Specifications

                                              Historical items
                                              BC0402925
                                              Interchange items
                                              BC0402925
                                              Weight
                                              0.1 oz

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