I'm not sure that the mystery is gone though. New technology has developed rapidly but although the average person's familiarity with using it has kept pace, I don't think that the understanding of how that tech works has kept up with it at all - the average user has no idea how their laptop or phone works. Imagine a 19th century guy whose watch stops, he can take the back off and even if he can't repair it he can see that that cog turns that one which tightens that spring and ultimately pulls that lever. His modern day equivalent who takes apart his laptop is just confronted by meaningless tiny boxes and so on... he knows it's not magic but, as ACC (not AOC as my hands tried to write for a second then) so famously said, for all most people understand of the day to day workings, it may as well be.
I think therefore I agree with the idea that old clock workings and even electronics can somehow be seen, in contrast to these smoothly alien plastic boxes, as organic natural technology that grows on its own in the wild, but my feeling is that that's more cos modern technology may as well be magic rather than cos its mystery has gone. Or perhaps something so unapproachable that we can't even reach the mystery to be mystified by it is in fact another side of that same coin.