DB16 Tourbillon Regulator
The DB16 combines the classic codes of Grande Horlogerie with the chronometric precision resulting from the patents and innovations of De Bethune's research and development laboratory, combined with the expertise of the Manufacture's craftsmen. Limited edition of 5 pieces.
Hours, minutes, central jumping seconds, date at 6 o’clock, perpetual calendar indicating the the day at 9 o’clock and the month at 3 o’clock. Spherical moon-phase indication and leap-year indication at 12 o’clock. Central Dead Beat Second, 30’’ indicator via the ultra-light De Bethune tourbillon cage. Power reserve indicator and age of the moon indication on the case back.
Hands
Curved, in hand-polished and flame-blued steel.
Dial
5N rose gold – sunburst hand-guilloché motif – apertures indicating the day at 9 o’clock and the month at 3 o’clock – dial indicating the day at 6 o’clock – De Bethune star-studded sky in flame-blued steel set with gold stars, featuring spherical moon-phase indication in platinum and flame-blued steel and a leap year indication at 12 o’clock.
Platinum. Diameter: 43mm-Thickness: 13.4mm
Attachments
Cone-shaped lugs.
Glass
Sapphire crystal with double anti-reflective coating (1800 Vickers).
Back
Open on the 30’’ indicator via the ultra-light De Bethune tourbillon cage.
Mechanism of the central jumping seconds, retrograde age of the moon indication on a sector dial, power reserve indication.
Sapphire crystal with double anti-reflective coating (1800 Vickers).
DB2509 Caliber
Movement
Mechanical with manual-winding movement.
Diameter 30 mm – 499 parts – hand-crafted finishing and decoration – Côtes De Bethune
Self-regulating twin barrel – De Bethune innovation (2004)
Silicon annular balance encircled by a white gold ring – De Bethune Patent (2010)
"De Bethune" balance-spring with flat terminal curve – De Bethune Patent (2006)
Silicon escape wheel Ultra-light De Bethune 30’’ tourbillon in silicon and titanium – De Bethune Innovation(2008)
De Bethune Dead Beat Second – De Bethune Innovation (2011)
Spherical moon-phase indication accurate to a degree of one lunar day every 122 years – De Bethune Patent (2004)
Retrograde age of the moon indication – De Bethune Innovation(2013)
Jewelling
48 jewels
Frequency
36’000 vibrations/hour
Power reserve
4 days
Extra-supple alligator leather, alligator lining
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