DB28 Swordfish

Specifications

About this reference

Reliability, technical excellence, and refinement. A diving watch designed for optimal legibility of time and immersion duration, both day and night. Introduced as a continuation of the sport line started in 2019 with the DB28GS Grand Bleu, the DB28GS Swordfish carries the same bold, elegant spirit with a new bi-chromatic interpretation of De Bethune blue and black. It reflects the Maison’s commitment to performance, innovation, and comfort—on land and underwater. Overview: Functions: Hours, Minutes, Seconds, Power Reserve Indicator between 9 and 10 o’clock, Unidirectional Rotating Bezel, Manual Dial Lighting. Watch: Case · Material: Black zirconium case middle with “Microlight” decoration, black brushed and polished harden stainless steel caseback and bezel; Case · Diameter: 44 mm; Case · Thickness: 12.8 mm; Case · Lugs: Floating lugs in black brushed harden stainless steel with blued polished grade 5 titanium insert – De Bethune Patent (2006); Case · Crystal: In sapphire crystal (1800 Vickers hardness) with double anti-reflective coating; Case · Case back: Open in black polished harden stainless steel; Display · Dial: Black titanium hours and minutes hands with black polished steel insert and second blued polished titanium insert, luminescent tip; Display: Polished blued titanium seconds hand with luminescent tip; Display: Power-reserve indicator between 9 and 10 o’clock; Display · Hand: Black Satin-brushed grade 5 titanium minutes dial with cut-out Arabic numerals; Display: Rotating bezel crystal with metallised minutes ring. Calibre: TYPE: Mechanical hand-wound movement; POWER RESERVE: 5 days, ensured by a self-regulating twin barrel De Bethune Innovation (2004); Number of parts: 400; Jewelling: 51 jewels; Diameter: 30 mm; Frequency: 28,800 vibrations per hour; Adornment: Mirror polished and blued grade 5 titanium motion-work bridge • Plate and barrel bridge covers in black hand-smoothed grade 5 titanium and adorned with “ Microlight engraving”, De Bethune Innovation (2007 ) • Hand-snailed barrels • Hand-polished and chamfered steel parts; TECHNICAL FEATURES: Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetr