In every new creation by De Bethune, the company’s founders, David Zanetta and Denis Flageollet perform a balancing act. It involves recombining age-old expertise and the styles of the Age of Enlightenment in a contemporary creation of new materials and technical innovations. By imagining what the great watchmakers of the 18th century would have made today, they lay the foundations of tomorrow’s watchmaking. They dismantle preconceptions to extend the frontiers of knowledge. They discover and explore the new horizons of science and technology, yet return to the mechanical and artistic essentials.
The construction and the aesthetic of the DB28 Maxichrono proudly illustrate the simplicity of the initial approach adopted by the brand founders.
Creating an accurate and readable chronograph within the confined space of a wristwatch: such was the leitmotif that drove seven years of research and development.
Showcasing extreme dial clarity and ultra-legible chronograph indications by means of its five central hands, this innovative chronograph is also equipped with a high-frequency calibre featuring optimised chronometric precision applied to the measurement of long periods of time. The single pusher at 12 o’clock preserves the comfortable design of the DB28 collection’s characteristic case.
Stemming from an unusual combination between the round shapes of the case and the fine, flexible lines of the lugs*, together with the association of materials such as hand-polished titanium on the case and lugs, along with polished and blued steel**, this compendium of innovations and patents subtly mingles classicism and modernity in terms of its design as well as its technical construction.
* patented floating lugs system that adapts to wrist size and movements
** the ancestral flame-blueing technique
De Bethune total clutch system
A patented chronograph invention
De Bethune’s research and development department has announced the filing of a patent application n° CH00076/14 for the chronograph mechanism. De Bethune’s absolute clutch aims to improve the performance of chronographs by correcting the faults identified in current mechanisms.
This mechanism makes the most of the advantages of the horizontal and vertical clutch systems while eliminating their faults. It thus benefits from a marked reduction in the friction that affects the movement both when the chronograph is running and when it is functioning without the chronograph engaged.
The absolute clutch operates in a system engaging the two traditional clutch methods to allow the different chronograph counters to function semi-autonomously:
Three different types of clutch behind three semi-independent systems controlled by three column- wheels thus govern the different chronograph elapsed-time counters.
In this way De Bethune marks a significant technological breakthrough in the history of chronographs, the result of continuous research heralded by the DB21 Maxichrono in 2006. Constant innovation relying on an extensive knowledge of age-old expertise has enabled the brand to simplify and enhance the reliability of the absolute clutch system so that it can be implemented in a movement manufactured by the production workshops in the Swiss village of L’Auberson.
|Movement||:||DB2030 calibre – mechanical hand-wound movement|
|Hand-crafted||:||Finishing and decoration|
|Hand-polished||:||Steel – 3 column wheels|
|Clutch||:||De Bethune absolute *|
|Barrel||:||Self-regulating twin *|
|Wheel||:|| Silicon/white gold balance |
Balance-spring with flat terminal curve* Silicon escape wheel*
|Frequency||:||36,000 vibrations per hour|
|Power reserve||:||5 days|
|Functions||:||Hours – minutes – mono-pusher chronograph with 24-hour, 60-minute and 60-second counters|
|Case||:||Mirror-polished grade 5 titanium – round-shaped|
|Attachments||:||Short or long floating lugs* in mirror-polished titanium|
|Crystal||:||Sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment|
|Crown||:|| At 12 o’clock |
Setting in 2 positions
|Back||:|| Open – sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment|
Chronograph calibre with hand-polished steel bridges
|Dial||:|| Silver-toned |
The architecture of the dial is constructed on different levels to maximise visibility
From the centre to the periphery; central hours counter
Hours inner ring
Minutes ring and minutes counter
Outer ring with chronograph seconds indication
|Hands||:|| 5 curved central hands |
Hand-polished and flame-blued steel for the hours and minutes hands and flame-blued steel for hours and seconds chronograph indicators
Chronograph minutes indicator in rose gold
|Strap||:||Extra-supple alligator leather|