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Movement: mechanical hand-wound


Functions: aperture-type jumping hours – rotating-disc analogue minutes display – spherical moon-phase indication at the centre


Diameter 30 mm – 355 parts – hand-crafted finishing and decoration


Self-regulating twin barrel*
Silicon/white gold balance wheel – balance-spring with flat end curve*
Triple pare-chute shock-absorbing system*
Spherical moon-phase indication accurate to a degree of one lunar day every 1,112 years*
Silicon escape-wheel*


Jewelling: 32 jewels
Frequency: 28,800 vibrations per hour
Power reserve: 5 days

* - Manufacture De Bethune patents and innovations


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