We know that backwinders are not so common in the watch production (Patek 3569, AP 25831 and 25643, Futurematic...) especially today (I have no example in mind at this moment).
I do not know why but I have always been attracted by a such specificity. I though about the AP Tourbillon 25643 (not only for this element) but I finally preferred to avoid it due to the fact that at least half of the production does not work :-(.
I would like to know your feeling for the ones who experienced a such "characteristic". Is it difficult to manipulate, set the hour, disturbing on the wrist...?
Debate is open!
Some pictures
Credit: JML on WatchProSite
Credit: Watch collecting lifestyle
Credit: www.1stdibs.com
Credit: found on eBay
Best wishes
Alkiro