DB28 Kind of Blue Tourbillon Milky Way

Specifications

About this reference

In honour of the colour blue, a fundamental element of its identity, De Bethune presents a monochromatic range of its iconic model the DB28 Tourbillon. Radical and magnetic, the colour is created by an artisanal and natural treatment of the metals. Specification: Case: Blued mirror-polished grade 5 titanium; Case · Diameter: 42,6 mm; Case · Thickness: 9,20 mm; Case · Lugs: Short or long floating lugs in blued 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 blued 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 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: 298; Calibre · Jewelling: 39 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Motion works bridge and cover plate in grade 5 titanium, mirror-polished and blued by hand; Calibre: Bridge cover on the barrel decorated in grade 5 mirror-polished and blued titanium, encrusted by hand with stars in white gold; Calibre: Rose-work grinding by hand on the barrels; Calibre: Decoration on power reserve indicator in grade 5 titanium “De Bethune” concentric graining and blued by hand; Calibre: Steel parts bevelled and flame-blued by hand; Dial: Blued grade 5 polished titanium hours ring with rose gold hour-markers; Dial: Blued grade 5 satin-polished titanium minutes ring; Dial: Milky Way patterns produced by laser beam micro milling, gilded with 24-carat gold leaf; Dial: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock –; Dial: De Bethune Innovation (2008); Dial: Hands:; Dial: Hand-polished rose gold hands; Technical features of calibre: Titanium balance wheel with white gold inserts, opt