DB25 Tourbillon Milky Way

Specifications

About this reference

De Bethune revisits the tourbillon as an authentic wristworn regulator, an historical breakthrough in the evolution of mechanical watches. This masterpiece is revealed only on the back of the watch, to genuine connoisseurs capable of comprehending its passionately subtle features, and also of appreciating the inner power and beauty of the starry sky, along with the evocation of the most famous 18th century clocks through the hour and minute ring in a sterling silver that is destined to acquire a sublime patina over the years. Specification: Case: Palladium; Case · Diameter: 44 mm; Case · Thickness: 10,6 mm; Case · Lugs: Ogival lugs; Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Open back, De Bethune 30 ” silicon/titanium Tourbillon, 36,000 vph – central jumping seconds; Case: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Function: Hours, Minutes, Jumping seconds, 30’’ indicator via the ultra-light De Bethune tourbillon cage on case back; Calibre · Calibre: DB2109; Calibre · Type: Mechanical manual-winding calibre; Calibre · Power reserve: 4 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004); Calibre · Number of parts: 330; Calibre · Jewelling: 46 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 36’000 vibrations per hour; Calibre · Adornment: Silver plate and barrel bridge cover adorned with “Côtes De Bethune”; Calibre: Hand snailed barrels; Calibre: Hand-polished, chamfered steel parts; Dial: De Bethune star-studded sky in blued and polished titanium with hand-fitted white gold pins depicting the stars; Dial: Milky Way patterns produced by laser beam micro milling, gilded with 24-carat gold leaf; Dial: Silver-toned hours and minutes ring; Dial: Hands:; Dial: Hands in hand-polished steel; 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 Bethune Patent (2006); Technical features of calibre: Silicon escape wheel; Technical features o