De Bethune
DB28 Kind of Blue Tourbillon
Ref. DB28TBTIBN/S
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Specifications
Reference
- Collection
- DB28
- Reference
- DB28TBTIBN/S
- Produced
- 2016 – present
Case
- Material
- Titanium
- Size
- 42.6 mm
Movement
- Calibre
- DB2019
- Power reserve
- 120 hours
About this reference
Blue: A fundamental element of De Bethune’s identity. This monochrome edition of the iconic DB28 model is both radical and magnetic. Its captivating hue is achieved through a meticulous, handcrafted metal treatment using entirely natural processes. 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: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock, De Bethune Innovation (2008); Dial: Hands:; Dial: Hand-polished rose gold hands; Technical features of calibre: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016); Technical features o
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