They're nowhere near as accurate as a quartz, but...I only have to adjust mine every week(ish) and it takes a minute. Not sure about the "quite a pain" part. An

They're nowhere near as accurate as a quartz, but...I only have to adjust mine every week(ish) and it takes a minute. Not sure about the "quite a pain" part. And, even if I let it drift for a while it takes around a month for it to hit a couple minutes off. Source: couple of beaters (Hammy Khaki Auto and an Orange Monster)