The round DB25 watch evokes a pure design with lines inspired by the decorative arts. The drum-shaped case with its imposing 44 mm diameter is built on a set of superposed rings of various sizes, giving it a sense of substance while remaining exquisitely light.
Lightness is also the distinctive feature of the slender lugs openworked adorned with a cone-shaped motif and featuring a sloping design that accentuates the roundness of the object.
The cold tones of platinum are combined with 5N rose gold and a hand-guilloché dial embellished with radiating motifs crafted in the finest classical tradition.
The spherical De Bethune moon sits at 12 o’clock and opens a symbolic window onto the cosmos. Entirely mirror-polished and composed of half-spheres set into blued steel and palladium, this three-dimensional indicator is driven by a high-precision mechanism requiring only one adjustment ever 122 years.
The polished steel, flame-blued hands are slightly curved in order to help them glide smoothly over the moon at 12 o’clock.
Alongside the classic features such as a triangular bridge adorned with Côtes de Bethune, the back of the DB25 LT displays a strong contrast with its avant-garde mechanism powered by a 30-second silicon and titanium tourbillon with its balance-wheel oscillating at 36,000 vibrations per hour, making it one of the fastest and lightest in the watch industry with its 57 components weighing just 0.18 grams in all.
Technical description
DB25 LT Tourbillon
Hours – minutes – spherical moon-phase indication at 12 o’clock -– tourbillon with 30-second indication on the back at 9 o'clock
Case
Platinum, drum-shaped – diameter 44 mm – thickness 12,5 mm
Attachments: fixed and hollowed lugs
Glass: sapphire crystal, 1800 Vickers with double anti-reflective treatment
Crown: at 3 o’clock – adjustable in 2 positions
Back: open – sapphire crystal with double anti-reflective treatment
Display
Dial: hand-guilloché rose gold – De Bethune star-studded sky in mirror-polished flame-blued steel inlaid with yellow gold stars with spherical moon-phase indicator in palladium and flame-blued steel at 12 o’clock
Hands: curved, in hand-polished flame-blued steel
Strap
Extra-supple alligator leather strap with pin buckle
DB 2519 calibre
Mechanical hand-wound movement
Functions: hours – minutes – spherical moon-phase indication at 12 o’clock – tourbillon with 30-second indication on the back at 9 o'clock
Diameter 30 mm – 354 parts – hand-crafted finishing and decoration – Côtes De Bethune – chamfered and hand-polished steel components
Self-regulating twin barrel*
Silicon/white gold balance wheel – balance-spring with flat terminal curve*
De Bethune 30 ‘’ silicon/titanium Tourbillon 36,000 vph *
Spherical moon-phase indication*
Silicon escape-wheel*
Jewelling: 27 jewels
Frequency: 36,000 vibrations per hour
Power reserve: 4 days
* Manufacture De Bethune patents and innovations
