Afternoon all, Having just received a Datejust back from a service, with the thread on the crown replaced, i'm wondering to what extent it's possible to fully wind the watch by just giving it a side-to-side shake, rather than unscrewing the crown each time. I know the crown thread will take some use, but i have had threads become damaged fairly quickly in the past.... maybe they take a couple of hundred screws-and-unscrews until you risk the thread becoming worn/damaged and some cross-threading ensuing ? I know simply wearing the thing is an obvious solution, but given i have a few watches in rotation (who doesn't?) that doesn't always work. Bottom line: can i save wear and pro-long the crown thread by shaking-to-wind? Or do i risk movement damage by shaking, making it a false economy? I find 50 (or so) shakes generally only gets me 6-8hrs of power... perhaps putting on the wrist after 50 shakes, and moving around a bit would be enough to keep it going throughout the day and night? or does one shake ≠ one crown turn, and i'd need (say) 150-or-so shakes to fully wind? That starts becoming a bit of a pain. Your thoughts are very mich welcome. thank you.