Dual front and back display of hours and minutes, jumping seconds, Ultra-light De Bethune 30’’ tourbillon in titanium, Spherical moonphase indication, leap-year indication, perpetual calendar indicating day, month and date, end of power reserve indication, age of the moon indication
Contemporary single-sided display
Display: hand-polished and blued titanium hands for hours, minutes and jumping seconds. Blued polished moon day indicator. Polished steel tourbillon seconds hand. End of power-reserve indicator between 8 and 9 o'clock. Ultra-light De Bethune 30’’ tourbillon in titanium. De Bethune Innovation (2008). Polished titanium hours and minutes indication Minute indication on the periphery Hour indication centered around the balance wheel at 6 o'clock
Dial: Minute sub-dial, 30'' sub-dial and moon day sub-dial silvered and relief
Classic reverse side display
Display: Polished yellow gold hour, minute and date hands. Spherical moon phase and leap year indicator at 3 o'clock. Blue day and month discs with gold relief
Dial: Star-studded sky in blued and polished titanium with hand-fitted white gold pins depicting the stars - Milky Way patterns produced by laser beam micro milling, gilded with 24-carat gold leaf. Silvered and relief hour and minute ring. Date sub-dial in blued sandblasted titanium with gold relief at 9 o'clock. Blue day and month discs with gold relief. Dial silvered and relief, with convex levels and guilloché central part
Polished grade 5 titanium – diameter 43.3 mm – thickness 13,85 mm
Attachments:
Floating lugs in mirror-polished grade 5 titanium, De Bethune Patent (2006), with case turning mechanism that can be clearly positioned on the front or back side
Glass doubles-sides:
Sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment
Crown at noon on the front side, at 6 o'clock on the reverse side, setting in two positions
DB2529 calibre
Movement:
Mechanical hand-wound
Diameter 30 mm – 751 parts – Motion works bridge and concave cover plate in grade 5 titanium, mirror polished – Polished and chamfered barrel bridge, with shot blasted stages – Blued titanium minute and jumping seconds bridge – Hand snailed barrels – Steel parts polished and chamfered by hand
- 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
- Ultra-light De Bethune 30’’ tourbillon in 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 per hour
Power reserve: 4 days
Extra-supple alligator leather, alligator lining