: I am somewhat confused by when I should assume
: a watch(DeVille co-ax) is fully wound. It
: sounds like only when manually wound(about
: 40x) can you expect to have full power
: reserve. On this site(trouble-shooter
: section) it suggests that even when a watch
: is actively worn 10-12 hours a day, 7 days a
: week, at the end of the day you have at best
: 50% of power reserve(about 20hrs.). Some
: clarification would be appreciated. Thanks
It all depends on how active you are while wearing the watch. When you wind it initially, you'll have your full power reserve (when you hear a clicking sound as you wind, you'll know the watch is fully wound since this is the overwind protection mechanism kicking in). The kinetic motion of your wrist will keep the watch wound while you wear it, provided you are reasonably active (not comatose, leaving your wrist in the same position all day).
When you take your watch off at night, you'll lose those hours from your power reserve, but if you are active while wearing the watch, you can get those hours back through the simple movements of your wrist. How much of your power reserve you lose really depends on how many hours per day it is off your wrist and how active you are while wearing the watch.
If you want to get an idea, try this: Fully wind your watch, then go about your normal routine for a week. At the end of the week, rewind your watch to full power reserve, but count how many full revolutions it takes to get it back to fully wound (this will be when you first hear the clicking noise of the overwind protection mechanism - you may need to hold the watch close to your ear to hear it). Since approximately 40 full revolutions should fully wind the watch, the number of revolutions it takes to get it back to the fully wound state will give you an idea as to how much of the watch's power reserve you've lost in a week.
