DB28XP TourbillonReference# DB28XPTTIS1
- Case: titanium
- Size: 43mm
- Movement: hand-wound manufacture caliber DB2009v4
- Function: 30-second tourbillon
- Power Reserve: approximately five days
- Water Resistance: 30m
- Dial: silver-toned hand-guilloché barley-corn motif
- Caseback: solid, engraved with the position of the planets on November 19 2011, the day the DB28 won the GPHG Aiguille d’Or award
- Hands: blue titanium with polished inserts
- Strap/Bracelet: hand-stitched alligator leather
- Factory Warranty: two years
Finest high watchmaking traditions, celebrated and subtly reinterpreted in a contemporary masterpiece: DB28XP Tourbillon marries ancestral knowledge with the latest technical and scientific advances. A timepiece nourished by a generations-old culture which De Bethune is proud to share and perpetuate in a resolutely avant-garde spirit.
With this third interpretation of the DB28 theme, De Bethune rethinks the watchmaking architecture at its core and explores new codes. DB28XP Tourbillon is directly inspired by the famous dial of the DB28 Digitale.
Offering hour, minute and seconds indications in 30”, DB28XP Tourbillon features an elegant and minimalist white dial with silver reflections rendered in a hand-engraved “barley grain” guilloche pattern, highlighted by a blued hour circle.
The tourbillon positioned at 6 o’clock is a titanium creation that beats at a frequency of 36,000 vibrations per hour. It features an extraordinarily lightweight cage (0.18 gr., the lightest ever) that rotates on itself every thirty seconds and comprises 63 components (the lightest of which weighs less than 0.0001 g). Like a flying insect, a microscale exoskeleton keeps it all together.
Why so small, so light, so fast? Today, a watch worn on the wrist is subjected to more action than may be safely compensated for. Position is abrupt and sometimes chaotic. The kinetic forces inflicted on a mechanical watchmaking movement should give pause. Just as Breguet had invented the tourbillon to meet the constraints of marine watches, De Bethune designed a tourbillon for the new dynamics of wristwatches. The laws of physics are clear: To compensate for the violence of wrist movements, the tourbillon cage must be as light as possible, operate at maximum frequency and speed of rotation at minimum weight and inertia. Only then can it fulfill its function in a watch for today.
On the case back, as a nod to the Aiguille d’Or – the highest distinction of the Grand Prix d’Horlogerie de Genève – awarded to the first DB28: The position of the planets is that in the evening sky over Geneva when the prestigious prize was presented on November 19, 2011.