Established In 1735, Blancpain enjoys the esteemed distinction of staying the oldest watch manufacturer on this planet. During the 1950s, it introduced the Fifty Fathoms diving watches, which were being crafted in collaboration with the French Navy's overcome swimmers and shortly became the regular concern in the US Navy SEALs. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/