De Bethune celebrates blue, its favourite colour. The independent Manufacture that constantly reinvents itself and redefines its icons now pushes the boundaries of creativity and technical expertise even further with a tourbillon version of the 39 mm DB28 Kind of Blue.
Functions
Hours, Minutes, 30” indicator Ultra-light De Bethune Tourbillon Cage at 6 o’clock
Case
Material
Blued polished grade 5 titanium
Diameter
38.7 mm
Thickness
8 mm
LugS
Blued polished grade 5 titanium floating lugs – De Bethune Patent (2006)
Crystal
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating
Case Back
Screwed case back in blued polished titanium with double anti-reflective coating
Calibre DB2009V7
TYPE
Mechanical hand-wound movement
POWER RESERVE
5 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 silicon and titanium De Bethune Innovation (2008)
Display
DIAL
- Titanium hour ring with blued microlight decoration and polished hour markers
- Blued grade 5 circular satin titanium minutes and seconds ring
- Bridge cover on the barrel and triangular central bridge in grade 5 blued polished titanium with blued drawn chamfered contour
HANDS
Polished titanium hands
Specifications
Watch
Case
Material
Blued polished grade 5
Diameter
38.7 mm
Thickness
8 mm
Lugs
Blued polished grade 5 titanium floating lugs – De Bethune Patent (2006)
Crystal
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating
Case back
Screwed case back in blued polished titanium with double anti-reflective coating
Display
Dial
Titanium hour ring with blued microlight decoration and polished hour markers
Blued grade 5 circular satin titanium minutes and seconds ring
Bridge cover on the barrel and triangular central bridge in grade 5 blued polished titanium with blued drawn chamfered contour
Hands
Polished titanium hands
Calibre
TYPE
Mechanical hand-wound movement
POWER RESERVE
5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004)
Number of parts
238
Jewelling
36 jewels
Diameter
30 mm
Frequency
36’000 vibrations per hour
Adornment
- Hand-crafted finishing and decoration
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 silicon and titanium De Bethune Innovation (2008)
Resources
Technical Description
Similar models
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.