DB28XP Kind of Blue Tourbillon Sapphire

Specifications

About this reference

The latest addition to the collection of iconic blued titanium timepieces. This new creation combines the refined elegance of the DB28XP with the timeless allure of the DB28 Kind of Blue Tourbillon, enhanced by a touch of sapphire. A limited edition of just 10 pieces. Specification: Case: Blued polished grade 5 titanium with “microlight” case middle set with baguette sapphire; Case · Diameter: 43 mm; Case · Thickness: 9,10 mm; Case: Lugs :; Case: Blued polished grade 5 titanium floating lugs – De Bethune Patent (2006); Case: Crystal :; Case: Saphir crystal (1800 Vickers hardness), with double anti-reflective coating; Case: Case back :; Case: Screwed case back in blued polished titanium and open on a linear power reserve indicator; 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: DB2005V5; 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: 380; Calibre · Jewelling: 40 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36'000 vibrations per hour; Calibre · Adornment: Hand-crafted finishing and decoration; Calibre: Technical features of calibre; Calibre: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016); Calibre: "De Bethune" balance-spring with flat terminal curve, De Bethune Patent (2006); Calibre: Silicon escape wheel; Calibre: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium De Bethune Innovation (2008).