Kind of Two Tourbillon

Specifications

About this reference

De Bethune presents a limited edition of 10 pieces endowed with two faces. Two dials, two identities. A technical and aesthetic exercise that opens up a whole new field of research. Specification: Case: Polished grade 5 titanium; Case · Diameter: 42,8 mm; Case · Thickness: 9,5 mm; Case · Lugs: Polished grade 5 titanium floating lugs, De Bethune Patent (2006), with case turning mechanism that can be clearly positioned on the front or back side; Case · Crystal doubles-sides: In sapphire crystal (1800 Vickers hardness) with double anti-reflective coating; Function: Dual front and back display of hours and minutes, Seconds, Ultra-light De Bethune 30’’ tourbillon in titanium; Calibre · Calibre: DB2579; 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: 256; Calibre · Jewelling: 32 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Motion works bridge and concave cover plate in grade 5 titanium, mirror-polished; Calibre: Polished and chamfered barrel bridge, with shot-blasted stages; Calibre: Polished and chamfered titanium minute bridge with microlight decoration; Calibre: Hand snailed barrels; Calibre: Steel parts polished and chamfered by hand; Dial: Contemporary single-sided display; Dial: Hour ring and 30” polished titanium dial with shot-blasted stages; Dial: Blued polished titanium hour-markers; Dial: Silvered and relief minute dial; Dial: Ultra-light De Bethune 30’’ tourbillon in titanium, De Bethune Innovation (2008); Dial: Hands:; Dial: Hand-polished and blued titanium hands for hours and minutes with polished inserts; Dial: Classic reverse side display; Dial: Dial silvered and relief, with convex levels and guilloché central part; Dial: Hands:; Dial: Hand-polished and blued titanium hands for hours, minutes and seconds; Technical features of calibre: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016); Technical features of calibre: “De Bethune” balance-spring with flat terminal curve, De Bethun