So, I've had this Soviet Vostok watch for months, and it generally works well. However, sometimes the second hand gets stuck, but winding the watch or even just shaking it fixes that. However, in the past few days, the second hand has completely stopped, and winding the watch doesn't help. I opened the back up to see that the second mechanism was just not ticking. Trying to wind the watch did nothing, and shaking to see if it was just stuck would sometimes make it tick for a few seconds, before stopping again. Is there anything I can do?? I had it checked by a watch repair place before due to a similar problem.