DB28 Kind of Blue
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, Spherical moon phase indication at 6 o’clock. Power reserve indicator situated on the back. Performance indicator between 2 and 3 o’clock.
Hand-polished and flame-blued steel hands.
Blued grade 5 polished titanium hours ring with rose gold hour-markers. Blued grade 5 satin-polished titanium minutes ring. Spherical moon phase indicator in palladium and flame-blued steel with precision of one lunar day every 122 years at 6 o’clock–De Bethune Patent (2004). Performance indicator between 2 and 3 o’clock
Blued mirror-polished grade 5 titanium. Diameter: 42.6mm-Thickness: 9.3mm
Short or long floating lugs in blued grade 5 mirror-polished titanium – De Bethune Patent (2006)
Sapphire crystal with double anti-reflective coating (1800 Vickers).
Screwed case back in blued grade 5 polished titanium that opens on a linear power reserve indicator in rose gold 5N. Sapphire crystal with double anti-reflective coating (1800 Vickers).
Mechanical hand-wound movement
Diameter 30 mm – 279 parts – Handmade, blued grade 5 mirror-polished titanium motion works bridge – Plate cover and bridge cover on the barrel in grade 5 blued titanium – Hand snailed barrels – Power reserve indicator in grade 5 titanium, hand decorated with “De Bethune” concentric graining and blued by hand-Steel parts beveled, polished and flame-blued by hand.
Self-regulating twin barrel-De Bethune Innovation (2004)
Titanium balance wheel with white gold inserts, optimized for temperature differences and air penetration-De Bethune Patent (2016)
“De Bethune” balance-spring with flat terminal curve-De Bethune Patent (2006)
Silicon escape Wheel.
Spherical moon phase indication accurate to a degree of one lunar day every 122 years-De Bethune Patent (2004)
Triple pare-chute shock-absorbing system-De Bethune Innovation (2005)
Extra-supple alligator leather, alligator lining