DB28 Steel Wheels

Specifications

About this reference

The DB28 Steel Wheels, limited to 5 pieces, is placed under the sign of transparency and light by opening its dial wide to the hypnotic architecture of its movement. Faithful to the codes of its predecessors, it perpetuates the House’s heritage: a bold aesthetic and an exceptional mechanism. Specification: Case: Blued polished grade 5 titanium; Case · Diameter: 42,6 mm; Case · Thickness: 9,30 mm; Case · Lugs: Short or long floating lugs in blued 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 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, Spherical moon phase indication at 6 o’clock, Power reserve situated on the back; Calibre · Calibre: DB2115V4; Calibre · Type: Mechanical manual-winding calibre; Calibre · Power reserve: 6 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004); Calibre · Number of parts: 275; Calibre · Jewelling: 35 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 28’800 vibrations per hour; Calibre · Adornment: Concave polished grade 5 titanium plate cover; Calibre: Hand made blued mirror-polished grade 5 titanium motion works bridge; Calibre: Barrels bridge adorned with “Côtes De Bethune” and “microlight” engraving; Calibre: Open worked and hand sailed barrels; Calibre: Rhodium power reserve indicator background decorated with “De Bethune” circular graining; Calibre: Blued and engraved ring; Calibre: Steel parts beveled and polished by hand; Dial: Circular-grained blued titanium hours ring; Dial: Moon phase bezel in polished blued titanium; Dial: Spherical polished titanium hour-markers set on a blued polished titanium circle; Dial: Spherical moon phase indication in palladium and flamed-blued steel with an accuracy of one lunar day every 122 years at 6 o’clock, De Bethune Patent (2004); Dial: Hands:; Dial: Sapphire hours hand rimmed with flame-blued steel; Dial: Minutes hand in hand-polished flame-blued steel; Technical features of cal