2 Answers

Richard ended up retiring much earlier than Emil, and in 1930, while in his eighties, Richard developed and patented a new alloy for balance springs that included a small amount link of link beryllium. A few years later, this alloy would be iterated on by Reinhard Straumann and eventually used as the base for the link Swiss Nivarox hairspring that's still used widely by today's watch industry.

I bought a vintage Cartier link Tank Louis ref. 1140 with a Chris-Craft employee inscription on the back. I found myself wearing my birth-year King Seiko a 36mm ref. 5625 from 1970. I wore my partner's 34mm link gold Omega bumper from the 1940s. I was really enjoying smaller vintage dress watches at home and for rugged adventures I returned to my Bremont S301 Supermarine. My 50th link birthday watch meant to do all of these things mostly sat in my watch box.