De Bethune DB28 Yellow Tones DB28YT

    The beauty of gold, the brilliance of precious stones, and yet…. none compare to the intensity and hypnotic radiance of fire. With complete mastery of the art of thermal oxidation of metals, De Bethune continues to explore all the colour shades resulting from the heat released by the chemical reactions of heat-treated steel and titanium.

    Functions : hours, minutes, spherical moon phase indication at 6 o’clock, power reserve situated on the back, performance indication between 2 and 3 o’clock
    Dial : circular-grained titanium hours ring, moon phase bezel in polished browned titanium, spherical polished titanium hour-markers set on a browned polished titanium circle, spherical moon phase indication in palladium and flamebrowned steel
    Hands : hours and minutes hands in flame-browned steel
    Case : yellow polished grade 5 titanium – diameter 42.6 mm – thickness 9,3 mm
    Attachments : floating lugs in browned polished grade 5 titanium, de bethune patent (2006)
    Glass : sapphire crystal, 1800 vickers hardness with double anti-reflective treatment crown at 3 o’clock, setting in two positions
    Back : screwed case back in grade 5 polished titanium that opens on a linear power reserve indicator in browned steel, sapphire crystal (hardness of 1800 vickers) with double anti-reflective coating
    Movement : mechanical hand-wound diameter 30 mm – 275 parts – yellow polished grade 5 titanium plate cover – yellow polished grade 5 titanium plate cover handmade yellow grade 5 titanium motion works bridge barrels bridge adorned with “côtes de bethune” in yellow titanium – rhodium circular-grained power reserve decoration – hand-polished, chamfered steel parts - self-regulating twin barrel, de bethune innovation (2004) - titanium balance wheel with white gold inserts, 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)
    Jewelling : 35 JEWELS
    Frequency : 28,800 vibrations per hour
    Power Reserve : 6 days
    Strap : Extra-supple alligator leather, alligator lining