The Ulysse Nardin's Executive Moonstruck Worldtime is a marvelous piece of engineering, astronomy, math, and art. Maybe, one day I'll be able to spare $75,000 (I prefer gold!).
See some pictures:
- http://quillandpad.com/2017/07/20/new-ulysse-nardin-moonstruck-worldtimer-simplifying-ultimate-astronomical-wristwatch/
- https://monochrome-watches.com/ulysse-nardin-executive-moonstruck-worldtimer-astronomical-watch-specs-price/
Formulas from the book Astronomical Algorithms - Jean Meeus
Original work of Mark Segraves: https://plus.google.com/109873773018255084880/posts/EDytzFsKEot
Main script file with Astronomical calculations: https://codeshare.io/29pxBM
