The clock mechanism sometimes stops depending on the clock orientation and position. Moreover, the speed of the mechanism is not regular, always depending on the clock orientation. The problem is not related to the manual winding. Probably, the first wheel of the mechanism (the biggest and fastest) is not correctly fixed and can stop because of the friction with other components.
NOTE: as declared in you mail of January 24th 2015, I ask for the clock replacement.
Thanks
