DB28GS Grand Sport

Specifications

About this reference

The DB28GS embodies a bold character, expressed through both its aesthetic and technical attributes. True to De Bethune’s commitment to wearer comfort—especially within the DB28 collection—it offers an exceptional fit. Designed for adventure, the DB28GS boasts impeccable water resistance, reaching depths equivalent to three full leagues under the sea. Specification: Case: Blued and hand-smoothed grade 5 titanium; Case · Diameter: 44 mm; Case · Thickness: 11,20 mm; Case · Lugs: Short or long floating lugs in blued and hand-smoothed grade 5 titanium, De Bethune Patent (2006); Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Screwed down closed back in blued hand-smoothed grade 5 titanium; Case: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Function: Hours, Minutes, Performance indication between 2 and 3 o’clock; Calibre · Calibre: DB2115V2; 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: 263; Calibre · Jewelling: 35 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 28’800 vibrations per hour; Calibre · Adornment: Mirror- polished blued grade 5 titanium motion-work bridge; Calibre: Plate and barrel bridge covers in blued and hand-smoothed grade 5 titanium and adorned with “; Calibre: Microlight; Calibre: engraving”, De Bethune Innovation (2007); Calibre: Hand snailed barrels; Calibre: Hand-polished and chamfered steel parts; Dial: Hand-smoothed grade 5 titanium minute ring with blue relief Arabic numerals; Dial: Performance indication between 2 and 3 o’clock; Dial: Hands:; Dial: Hand-smoothed grade 5 titanium with hand-polished flame-blued steel hours hand; Dial: Hand-polished flame-blued steel minutes hands; 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;