Jaeger Lecoultre 408 417 428 461 471 472 473 474 475 yoke spring / part 440

Jaeger Lecoultre yoke spring (ressort de bascule) part 440
Original JLC part

Fits all following JLC calibers : 408 , 417 , 428 , 461 , 471 , 472 , 473 , 474 , 475

New old stock / neuf de stock (the packet was factory sealed, I have just opened it in order to make pictures)