AS mainspring 1477 1513 1533 1563 1639 Automatic

Mainspring / Ressort de barillet / Zugfeder

New old stock / neuf de stock

Inox premium quality

Same mainspring for all AS following automatic calibers :

AS 1477 1513 1533 1563 1639

Bride glissante pour mouvement automatic / With attached bridle for automatic movement