Not a big fan of the new 80hr power reserve movements fitted in Hamilton, Tissot and some other Swatch brands. The 2824 from which this movement derived was easily regulated by any watchmaker, indeed any competent amateur. The regulation is now factory set and if it's out you're in trouble. My watchmaker says he can do it but not easily and he said it's no job for an amateur. The 80hr power reserve is a great idea and the slower beat rate (you'll find it's 21600 and not 28800 as in the description) is great for prolonging service intervals but why couldn't the movement have kept the same regulation system as it's predecessor. I got my Khaki Field prior to the movement change but if I wanted a new Hammy I'd go manual wind which retains the 2801 high beat and still easily regulated movement.