パーツをピンセットで持つときに傷がつきそうで怖いです。コツはありますでしょうか。 適宜、ロディコを使用しても良いものでしょうか（後で洗浄するので多少汚れても良い、という考えで使用しても良いかと考えました）。作業している時続きを読む

I’ve been repeating lubricationcap jewel several times as a way to practice. At first, cap jewel, the oil would pool in a round mound cap jewel, but after cleaning it a few times, the oil stopped pooling and began to spread cap jewel. Read more about cleaning

Is the reason why a lever-type blade remover is often used instead of a blade removal tool (for chronograph hands) due to space constraints, or because the hands are pressed in so tightly, or is there some other reason?

Regarding the purchase of a mainspring winder. Is it really better to get one that winds both clockwise and counterclockwise? The ones that do both are quite expensive, so I can’t really afford them. I was wondering if it might be okay to get one that only winds clockwise, since most of the watches I actually work on are wound clockwise. I’ve never even opened a barrel before, so read more

I was about to start disassembling a mechanical watch for a lesson, but when I pulled the crown out one notch to set the time, the mainspring barrel immediately popped out. Please let me know if I should continue working on it as is or if I should have it replaced first.

I broke the shock-absorbing spring. Is it possible to purchase just the spring? If the spring breaks in a practice movement, how can I get a replacement?