De Bethune DB25 Starry Varius Chronomètre Tourbillon

Just as Abraham-Louis Breguet had invented the tourbillon to meet the technical constraints facing marine chronometers, De Bethune invented its own version to suit the new dynamic of wristwatches. Today, a wristworn timepiece endure considerably more intense ‘torture’ than were marine chronometer’s in Breguet’s day. Changes of position are swift and random and the brutal kinetic forces to which watch mechanisms are subjected deserves close attention.