Mechanical watches are divided into two categories: manual mechanical watches and automatic mechanical watches. Man-made mechanical watch winding is full It is easy to judge: clockwise twist the crown screwed to the winding is full of the clockwork. Do not tighten the screw, if the force is too large may lead to winding collapse. If the manual mechanical watch stops walking, winding up to about the need to twist the crown under 25-40. The longer the power reserve watch, the more turns you need to twist the crown. Like the Hublot "Rafa" long power watch and even equipped with electric winch. Automatic mechanical watches: Each automatic mechanical watches are derived from the manual mechanical watch, so the automatic mechanical watch can be like a manual mechanical watch clockwise twist crown. Rather than swinging through the arm to wind it up. Automatic mechanical watches and manual mechanical watches have a huge difference, in order to prevent self-winding mechanism winding the wound and the risk of collapse, automatic watch has a full string spin function, the excessive winding force released. So automatic mechanical watch crown no matter how many times you turn clockwise can be twisted, there will be no twist phenomenon. So how to judge on the full? If you feel fine enough, you should be able to feel the release of too much energy inside the table, "carbazole, carbazole" sound. If you can not feel, twist the crown 25-40 laps.