DB28 Kind of Blue Tourbillon
Blue. A fundamental element of De Bethune's identity, this is a single-colour version of its iconic DB28 model. Radical and magnetic, the colour comes from a treatment of the metals, done by hand and with entirely natural processes.
Hours, minutes, 30′′ indicator through the ultra-light silicon and titanium. De Bethune tourbillon cage at 6 o’clock. Power reserve on case back.
Hands
Hand-polished rose gold hands.
Dial
Blued grade 5 polished titanium hours ring with rose gold hour-markers. Blued grade 5 satin-polished titanium minutes ring. De Bethune 30′′ultra-light tourbillon in silicone and titanium at 6 o’clock–De Bethune Innovation (2008)
Blued mirror-polished grade 5 titanium. Diameter: 42.6mm-Thickness: 9.2mm
Attachments
Short or long floating lugs in blued grade 5 mirror-polished titanium–De Bethune Patent (2006)
Glass
Sapphire crystal with double anti-reflective coating (1800 Vickers).
Back
Screwed case back in blued grade 5 polished titanium that opens on a linear power reserve indicator in rose gold. Sapphire crystal with double anti-reflective coating (1800 Vickers).
DB2019 Caliber
Movement
Mechanical hand-wound movement
Diameter 30 mm – 282 parts – Motion works bridge and cover plate in grade 5 titanium, mirror-polished and blued by hand – Bridge cover on the barrel decorated in grade 5 mirror-polished and blued titanium, encrusted by hand with stars in white gold – Decoration on power reserve indicator in grade 5 titanium “De Bethune” concentric graining and blued by hand
Self-regulating twin barrel-De Bethune Innovation (2004)
Silicon escape wheel encircled with a white gold ring -De Bethune Patent (2010)
“De Bethune” balance-spring with flat terminal curve-De Bethune Patent (2006)
Silicon escape Wheel.
Ultra-light 30’’ De Bethune Tourbillon in silicon and titanium- De Bethune Innovation (2008)
Jewelling
39 jewels
Frequency
36’000 vibrations/hour
Power reserve
5 days
Extra-supple alligator leather, alligator lining
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