Established In 1735, Blancpain enjoys the esteemed distinction of being the oldest watch brand name on the planet. Within the 1950s, it released the Fifty Fathoms diving watches, which were crafted in collaboration with the French Navy's beat swimmers and shortly became the normal situation from the US Navy SEALs. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/