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Movement: mechanical hand-wound


Functions:hours – minutes – central jumping seconds – date at 6 o’clock – perpetual calendar indicating the day at 9 o’clock and the month at 3 o’clock – spherical moon-phase and leap-year indication at 12 o’clock
Power indication at 6 o’clock – tourbillon with 30-second indication – age of the moon indication


Diameter 30 mm – 499 parts – hand-crafted finishing and decoration – Côtes De Bethune


Self-regulating twin barrel*
Silicon/white gold balance wheel – balance-spring with flat end curve*
De Bethune 30” silicon/titanium tourbillon, 36,000 vph*
Central jumping seconds*
Silicon escape wheel*
Spherical moon-phase indication accurate to a degree of one lunar day every 122 years*
Retrograde age of the moon indication*


Jewelling: 48 jewels
Frequency: 36,000 vibrations per hour
Power reserve: 4 days

* - Manufacture De Bethune patents and innovations


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