De Bethune caliber DB2547

Hand-wound movement with a diameter of 30 mm and a total of 455 parts – curved mirror-polished steel plate cover – steel barrel bridge cover, mirror-polished and adorned with “Bôtes de Bethune” enhanced with microlight decoration in its center – De Bethune innovation 2016 – hand-polished, chamfered steel parts - self-regulating twin barrel, De Bethune innovation (2004) - titanium balance wheel with white gold inserts, De Bethune patent (2016) - "De Bethune" balance-spring with flat terminal curve, De Bethune patent (2006) - silicon escape wheel - microsphere day/night indicator in rose gold and blued steel similar decoration technic of the spherical moon phase, De Bethune patent (2004) - triple pare-chute shock-absorbing system, De Bethune innovation (2005)