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                                              JBC Legacy Watch Parts Database

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                                              MS-JA303
                                              Sold Out

                                              MS-JA303

                                              Mainspring 20-3-21.75 T - MS-JA303

                                              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.

                                              Hampden Mainspring
                                              • Width : 2.90mm
                                              • Strength : .210mm
                                              • Length : 21.75 in.
                                              • End Type : TEE - T End
                                              • Size : 18/S
                                              • Factory Number : 1696

                                              Specifications

                                              Historical items
                                              BC0115949
                                              Interchange items
                                              BC0115949, JA-303, and JA303
                                              Weight
                                              1.0 oz

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