Today’s material, heat treat, and manufacturing capabilities are responsible for that extra capacity but our friends at Gleason still “work” the same geometry system. What was a highly sophisticated design almost 90 years ago may not be anything special today but you have to admire things that keep working long after the design life has passed.
It has been awhile since I read any news reports on the “infinity clock” being built with Silicon Valley money. A clock that will be self powered, run forever, and be working no matter what happens to us crazy humans. I rather suspect any future space visitors will be more interested in touring our old car museums than our feeble attempts at clock making.
I mean no offense to the Infinity Clock team. Beings capable of interstellar travel are just more likely to find the artifacts of our journey from walking barefoot to interstate highway travel to be more informative of our progress as tool making apes than a clock.