DB28 Tourbillon

Specifications

About this reference

De Bethune revisits its classics and reaffirms its identity through the DB28 collection, a timepiece that unmistakably carries the brand’s signature style while embodying its bold, avant-garde approach to horology. The DB28 tourbillon offers exceptional wearer comfort, thanks to its surprising lightness and the innovative “floating lugs” system—patented for its ability to effortlessly adapt to the wrist’s size and movements. This is further enhanced by the presence of the world’s lightest tourbillon, adding a remarkable level of precision and sophistication to the timepiece. Specification: Case: Mirror-polished grade 5 titanium; Case · Diameter: 42,6 mm; Case · Thickness: 9,20 mm; Case · Lugs: Short or long floating lugs in mirror-polished grade 5 titanium, De Bethune Patent (2006); Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Screwed down back in polished grade 5 titanium that opens 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 case 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: 355; Calibre · Jewelling: 32 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Silver plate and barrel bridge covers adorned with “Côtes De Bethune”; Calibre: Hand snailed barrels; Calibre: Hand-polished and chamfered steel parts; Dial: Black in mirror-polished steel; Dial: Mirror-polished and silver-toned minutes 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