indignantdenial
978
While on vacation...
I came across this Ulysse Nardin Marine Chronometer at a museum and was shocked. I'd never seen one and assume they're fairly rare, though I wouldn't know. The museum didn't have any detailed information about it in particular, but they did explain what it does and how it works—not news to me! So I wonder, does anyone know about these or have a helpful link that has information on them?