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Watch Case Part Assortments

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                                              JBC Legacy Watch Parts Database

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                                              MS-JA720

                                              MS-JA720

                                              Mainspring 12.5-6.38-19.25 Hol - MS-JA720

                                              $24.95

                                              Waltham Mainspring
                                              • Width : 2.15mm
                                              • Strength : .160mm
                                              • Length : 19.25 in.
                                              • End Type : HOLE - Hole End
                                              • Size : 12/S
                                              • Factory Number : 2279, 2224A

                                              Specifications

                                              Historical items
                                              BC0200916
                                              Interchange items
                                              BC0200916, JA-720, and JA720
                                              Weight
                                              0.1 oz

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