Quote:
Originally Posted by Tools
Either way will wind your watch to the max.
The mainspring sits in a barrel and it will rotate inside that barrel when it reaches full wind; this is why you cannot "over-wind" an automatic. The mainspring doesn't know or care how it got to it's maximum wind and starts slipping, it just does. 
48 hour power reserve is optimal. Conditions are not always the same for every movement and so not all will have an identical PR.  |
Thank you!
manual winding - 47.5 hour
automatic winding (after 15km walk) - 41.5 hour.
Is that normal?