Amongst a couple of other interests I'm primarily a graphic designer, with an interest in watch design, so was happy when I came across this show on Netflix:

Abstract: The Art of Design

https://www.netflix.com/gb/title/80057883

It's a great series of documentaries focusing on various aspects commercial art and design world, but one episode in particular might interest you guys too.

Jonathan Hoefler: Typeface Design –*This episode features Heofler, founder of Typography.com. Throughout the episode he researches vintage watch face typography so he and his team can create a new font based on vintage watch typography. The resulting font is here: https://www.typography.com/fonts/decimal/overview