Hello!
I have a 7S26B movement I bought new (inside a watch, four and a half years ago), and since seem to have killed when I accidentally hit the hairspring with a toothpick while moving the regulator lever to neutral in an effort to get the hairspring back into the groove of the regulator pin. The balance wheel just stopped altogether.
I'm pretty sure I have the watch in beat to acceptable range, but can't fully confirm for a couple more days. The watch runs consistently as long as I'm letting it run fast, on the order of gaining several minutes a day. As I move the regulator lever slower and slower (-) and approach acceptable performance levels, the balance wheel tends to just stop a lot, and, past a point, just remains stopped if the regulator level is far enough into the slower range. Without removing the entire balance wheel assembly, the spring looks clean. It is definitely not magnetized. No coils are tangled that I can see. The regulator lever was set somewhere on the slow (-) side when the watch arrived new.
I realize i probably need a new hairspring and balance wheel, but I'm curious is what I'm describing is symptomatic of a particular type of problem. What could be wrong that would cause the balance wheel to not want to work when the regulator lever is moved closer to the beat lever?
Thank you very much!
I have a 7S26B movement I bought new (inside a watch, four and a half years ago), and since seem to have killed when I accidentally hit the hairspring with a toothpick while moving the regulator lever to neutral in an effort to get the hairspring back into the groove of the regulator pin. The balance wheel just stopped altogether.
I'm pretty sure I have the watch in beat to acceptable range, but can't fully confirm for a couple more days. The watch runs consistently as long as I'm letting it run fast, on the order of gaining several minutes a day. As I move the regulator lever slower and slower (-) and approach acceptable performance levels, the balance wheel tends to just stop a lot, and, past a point, just remains stopped if the regulator level is far enough into the slower range. Without removing the entire balance wheel assembly, the spring looks clean. It is definitely not magnetized. No coils are tangled that I can see. The regulator lever was set somewhere on the slow (-) side when the watch arrived new.
I realize i probably need a new hairspring and balance wheel, but I'm curious is what I'm describing is symptomatic of a particular type of problem. What could be wrong that would cause the balance wheel to not want to work when the regulator lever is moved closer to the beat lever?
Thank you very much!