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 i...
Mine is quartz, not mechanical but its purpose and casing is the same — accurate timekeeping in marine environments without outside influence (cellular, GPS) sources. Cazalea ...
Source Web, I can't remember where I got it from Top right corner table (sorry it is in German), but states that #8512 is rather from +/-1958 (my 1st assumption was completely wrong !), and you can guess from the table that around 10,000 were made, so tha...