Starry Varius Chronomètre Tourbillon

Ref: DB25VTTIS3

De Bethune reinterprets the tourbillon as a true wrist-worn regulator—an innovation that marks a pivotal moment in the evolution of mechanical timekeeping. This masterpiece remains discreetly hidden on the caseback, revealed only to true connoisseurs who appreciate its refined complexity. Beyond its technical brilliance, the watch captures a deeper sense of artistry—the mesmerizing beauty of a starry sky and a tribute to the great 18th-century clocks, reflected in the sterling silver hour and minute ring, destined to develop a rich, timeless patina over the years.

Functions

Hours, Minutes, Jumping Seconds, Ultra-light De Bethune 30″ Tourbillon on case back

Case

Material

Polished grade 5 titanium

Diameter

42 mm

Thickness

10.3 mm

LugS

Ogival lugs

Crystal

Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Open back

Open back, De Bethune 30 ” silicon/titanium Tourbillon, 36,000 vph – central jumping seconds
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Calibre DB2109V4

TYPE

Mechanical manual-winding calibre

POWER RESERVE

4 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004)

TECHNICAL FEATURES

Titanium balance wheel with white gold inserts, optimised 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
Ultra-light De Bethune 30’’ tourbillon in titanium, De Bethune Innovation (2008)
De Bethune Dead Beat Second, De Bethune Innovation (2011)

Display

DIAL

De Bethune star-studded sky in blued and polished titanium with hand-fitted white gold pins depicting the stars
Milky Way patterns produced by laser beam micro milling, gilded with 24-carat gold leaf
Silver-toned hours and minutes ring

HANDS

Hands in hand-polished steel

Specifications

Watch

Case

Material

Polished grade 5 titanium

Diameter

42 mm

Thickness

10,3 mm

Lugs

Ogival lugs

Crystal

Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Open back

Open back, De Bethune 30 ” silicon/titanium Tourbillon, 36,000 vph – central jumping seconds
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Display

Dial

De Bethune star-studded sky in blued and polished titanium with hand-fitted white gold pins depicting the stars
Milky Way patterns produced by laser beam micro milling, gilded with 24-carat gold leaf
Silver-toned hours and minutes ring

Hands

Hands in hand-polished steel

Calibre

TYPE

Mechanical manual-winding calibre

POWER RESERVE

4 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004)

Number of parts

260

Jewelling

43 jewels

Diameter

30 mm

Frequency

36’000 vibrations per hour

Adornment

Silver plate and barrel bridge cover polished
Hand-snailed barrels
Hand-polished, chamfered steel parts

TECHNICAL FEATURES

Titanium balance wheel with white gold inserts, optimised 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
Ultra-light De Bethune 30’’ tourbillon in titanium, De Bethune Innovation (2008)
De Bethune Dead Beat Second, De Bethune Innovation (2011)

Resources

Technical Description

Contact

For any questions, our
team is at your disposal

We are pleased to welcome you to our lounges, thoughtfully designed to immerse you in the heart of the De Bethune universe. More than just spaces for exhibition, each visit offers an invitation to explore and connect. Take the time to admire our collections, engage in conversations about watchmaking, and enjoy a moment of refinement, where every detail is crafted to inspire your passion and enhance your experience.

Schedule an appointment

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