De Bethune caliber DB2005

Hand-wound movement with a diameter 30 mm and a total of 160 parts – silver plate and barrel bridge cover adorned with "Côtes de Bethune" – hand-snailed barrels – 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 - triple pare-chute shock-absorbing system, De Bethune innovation (2005)