Here is the situation: I own an absolutely authentic Rolex Explorer (model 1016) that I inherited from my father many years ago. It has sentimental value above and beyond being a nice watch to wear. However, I cannot afford the "Rolex Tax", by which I mean that every 4-5 years the watch breaks or seizes up in some manner that requires an overhaul - the last one at over $700 (if you've shelled out $50+k for a Rolex, you may not care - but for those of us on the lower end of the stainless-steel line, someone should really be more forthright about TCO). If I had bought the watch, I would just sell it and chalk it up to experience. But, as I said, the watch has significant sentimental value, and I really don't want to just store it on a shelf and foist what will probably end up being repeated $1000 to $1500 periodic service fees on one of my children. What I would like to do is place the original movement in a nice acid-free baggy in a lockbox somewhere and replace it with an ETA or, since "we don't wanna sell to anybody else anymore" a Chinese ETA knockoff movement for every-day use. Yes, yes, I know they're unreliable - but I bet I could buy 20 of them for what one "Rolex cleaning" costs me, and as long as one will last for at least 4 months, I'm money ahead. Yes, I know the purists (and Rolex retailers) in the audience are cringing and calling me horrible names by now. But - for the rest of you - can you recommend a movement that will (a) fit without a lot of reworking or spacers, and (b) reasonably replicate the 8bps stutter-sweep of the second hand such that any purists I run into in the wild won't point at my wrist and exclaim in a loud voice "oh my GAWD - you're wearing a FAKE!!!"? If I, or one of my heirs decide to sell the watch, of course, I'll still have the original authentic Rolex movement to put back in; until then, I'm not taking out second-mortgages just to keep a bloody watch running.