Mechanical watch nerd here. This describe an ETA (swiss) movement, I really prefer the Japanese movement (I know mostly seikos). The mechanism are more simple and more robust.
For instance, on ETA the crown mechanism is really sensitive, a lot of tiny fragile parts with a lot of tension in them, it go wrong easily.
Also, seeing this web page I got frustrated by the fact it doesn't tackle what got me the hardest time: how can the crown move the hands without any clutch mechanism (some have) ?
It's a matter of friction and torque, so it's hard to get while reasoning on a "perfect" mechanism.
Also, seeing this web page I got frustrated by the fact it doesn't tackle what got me the hardest time: how can the crown move the hands without any clutch mechanism (some have) ? It's a matter of friction and torque, so it's hard to get while reasoning on a "perfect" mechanism.