W1340 Watch Mainspring Winder for 7750 7751 7753 7754 7760 7765

W1340 Watch Mainspring Winder for 7750/7751/7753/7754/7760/7765

Please note that a tiny hole may come in the barrel. those who care please don't buy. thank you!

Package included: 1 piece( mainspring and its barrel in video NOT included)