DB28XP Tourbillon

Specifications

About this reference

In highlighting this design, which has become iconic over the years, De Bethune celebrates the DB28’s 10th anniversary by introducing a set of three watches in 2020. All three timepieces, all true to the DNA of the DB28, are interpretations of the same theme, independent of each other yet linked by their history, the work that went into them, the brand cues they reflect. Each one a creation in its own right, yet all share a kinship, like siblings. Specification: Case: Polished grade 5 titanium with “microlight” case middle; Case · Diameter: 43 mm; Case · Thickness: 8,1 mm; Case · Lugs: Polished grade 5 titanium floating lugs, De Bethune Patent (2006); Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Solid, in polished grade 5 titanium with the position of the planets on November 19, 2011(Aiguille d’Or – GPHG); Case: Engraved ring in blued circular satin-finish titanium; Function: Hours, Minutes, 30’’ indicator via the ultra-light De Bethune tourbillon cage at 6 o’clock, Power reserve situated on the back; Calibre · Calibre: DB2009v4; Calibre · Type: Mechanical manual-winding calibre; Calibre · Power reserve: 5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004); Calibre · Number of parts: 216; Calibre · Jewelling: 33 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Hand-crafted finishing and decoration; Dial: Circular-grained titanium hours ring; Dial: Spherical polished titanium hour-markers set and 30” dial on a blued polished titanium circle; Dial: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock, De Bethune Innovation (2008); Dial: Hands:; Dial: Minutes and hours hand in hand-polished sand-blasted blued titanium; Technical features of calibre: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016); Technical features of calibre: “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006); Technical features of calibre: Silicon escape wheel; Technical features of calibre: Ultra-light De Bethune