DB28 Tourbillon Zirconium

Specifications

About this reference

De Bethune is revisiting its classics and reasserting its identity codes through the DB28 collection, a strongly identifiable timepiece endowed with the signature House style features and conveying its resolutely avant-garde vision of the watchmaking art. The wearer comfort of the DB28 stems from the surprising lightness, and to the presence of “floating lugs”, a patented system that easily adjusts to the size of the wrist and its various movements with the lightest tourbillon in the world. Specification: Case: Polished zirconium; Case · Diameter: 42,6 mm; Case · Thickness: 9,20 mm; Case · Lugs: Short or long floating lugs in anthracite zirconium polished, De Bethune Patent (2006); Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Open on a linear power reserve in rose gold 5N; Case: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; 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: DB2019; 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: 282; Calibre · Jewelling: 38 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Black polished steel motion-work bridge and barrel bridge; Calibre: Ruthenium plate cover adorned with “Côte De Bethune”; Calibre: Hand-snailed barrel; Calibre: Hand-polished, chamfered steel parts; Dial: Black in mirror-polished steel; Dial: Anthracite minute ring; Dial: Black hour ring with black mirror-polished steel markers; Dial: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock, De Bethune Innovation (2008); Dial: Hands:; Dial: Hand-polished stainless steel hands; Technical features of calibre: Silicon annular balance encircled by a white gold ring, De Bethune Patent (2010); Technical features of calibre: “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006); Technical features of calibre: Silicon escape wheel; Tec