DB28XS Kind of Blue Tourbillon

Specifications

About this reference

De Bethune celebrates blue, its favourite colour. The independent Manufacture that constantly reinvents itself and redefines its icons now pushes the boundaries of creativity and technical expertise even further with a tourbillon version of the 39 mm DB28 Kind of Blue. Overview: Functions: Hours, Minutes, 30” indicator Ultra-light De Bethune Tourbillon Cage at 6 o’clock. Watch: Case · Material: Blued polished grade 5; Case · Diameter: 38.7 mm; Case · Thickness: 8 mm; Case · Lugs: Blued polished grade 5 titanium floating lugs – De Bethune Patent (2006); Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Screwed case back in blued polished titanium with double anti-reflective coating; Display · Dial: Titanium hour ring with blued microlight decoration and polished hour markers; Display: Blued grade 5 circular satin titanium minutes and seconds ring; Display: Bridge cover on the barrel and triangular central bridge in grade 5 blued polished titanium with blued drawn chamfered contour; Display · Hands: Polished titanium hands. Calibre: TYPE: Mechanical hand-wound movement; POWER RESERVE: 5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004); Number of parts: 238; Jewelling: 36 jewels; Diameter: 30 mm; Frequency: 36’000 vibrations per hour; Adornment: Hand-crafted finishing and decoration; Technical features: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016) • “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006) • Silicon escape wheel • Ultra-light De Bethune 30’’ tourbillon in silicon and titanium De Bethune Innovation (2008).