Nine, this is the number of different calibres which have been developed within the workshops of the DE BETHUNE Manufacture during its lifetime of only eight years.
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DB25LWS1V1 case in white gold - movement with inverse Côte de Genève Technical description from the DB25LWS3V2 Material : white gold Case : drum Case dimensions : 44.6mm in diameter and 11.1mm thick Dial : flame-blued sky dotted with gold stars Hands : flame-blued steel, hand-polished Crystal : sapphire, 1800 Vickers hardness with double anti-reflective treatmentCrown : screw-down at 3 o'clock – settings in 3 positions Movement : DB2105si – hand-wound mechanical – movement in hardened nonmagnetic steel, steel chamfered and polished by hand – self-adjusting double spring barrel – silicon annular balance with flat terminal curve Functions : hour, minute - moon phase indication - power reserve indicator on the back
Jewels : 29
Frequency : 28'800 vibrations per hour Power reserve : 6 days Reference : DB25LWS3V2 case in white gold – movement in hardened non-magnetic steel DE BETHUNE EN DATE 2002
The start of the De Bethune Manufacture. First collection based on four different models. Realisation of an unique minute repeater striking watch with perpetual calendar and equation of time. 2003
Launch of two unique pieces: a perpetual calendar with a large date and a strike activated by a water-resistant pusher, as well as the first table-clock with a striking marine movement, double spring barrels and a constant-force escapement.
Six new models join the basic collection. 2004
First generation of the titanium/platinum balance and balance spring with flat terminal curve. Appearance of the system of the spherical moon rotating on its own axis.
First mechanical calibre DB2004 entirely manufactured within the workshops. Launch of the DB15 collection with perpetual calendar. 2005
Mechanical calibre with power reserve (DB2014).
Introduction of the DBS collection and the first haute joaillerie watch (DBL). Second generation of the titanium/platinum balance and balance spring with flat terminal curve. 2006
Revolution with the first temperature-compensated balance and balance spring, with the escape wheel and lever in silicon.
Third generation of the titanium/platinum balance and balance spring with flat terminal curve protected by the triple-parachute anti-shock system.
Development of two new manufactured calibres: chronograph calibre DB2034 and automatic calibre DB2024 with a central shock-absorber system for the ceramic ball-bearing.
Launch of a sports watch case with three models, DB20GMT, DB20QI and DB22, and a look towards the future with a digital watch (DBDigitale).
First Dream Watch: co-axial chronograph with cradle case. 2007
Presentation of research into a new annular balance in titanium with platinum mass.
Design of an eighth collection: DB24 with a mechanism for controlling the speed of automatic winding on the back.
Deposit of the patent for spring barrel with reduced friction. 2008
Dream Watch One with annular balance in silicon / platinum. Dream Watch Two with a silicon / titanium tourbillon weighing less than 0.18 grams and the temperature-compensated silicon / platinum balance. Introduction of the DB25 collection, the first classic watch with an automatic calibre, and the DB26 collection, perpetual calendar with a pivoted cradle case.
Presentation of the DB24 with the system for regulating the speed of automatic winding on the back and on the dial. Mechanical calibre with power reserve of 6 days (DB2015). 2009
First commercialised series of Dream Watch One. Presentation of Dream Watch One with silicon tourbillon.
New jewellery pieces with diamonds and blue baguette sapphires.
Three new calibres manufactured: DB2005, DB2016 and DB2009 2010
New DB2105s production calibre with silicon / platinum balance wheel Presentation of the DB25 moon phase and the DB25 with sky and stars DE BETHUNE AT A GLANCE Address: MANUFACTURE
De Bethune SA Granges-Jaccard
6 CH - 1454 La Chaux – l'Auberson
Tel. +41 24 4542281
Fax + 41 24 4542317
info@debethune.ch
www.debethune.ch

The latest is the calibre DB2105s, fitted with a silicon balance wheel, the first time this has been used in a production movement. This calibre is to be found in the new watches of the DB25 collection with its pure aesthetic, enhanced by a three-dimensional moon set in a silvered dial guilloché by hand or against a sky dotted with a dozen stars.A CLASSIC DESIGN BUT A HIGH-TECH MOVEMENT: Calibre DB2105s – a unique regulating organ The achievement of this new calibre has been possible through the hard work of the brand's research & development department over many years. Since it was founded, DE BETHUNE has carried out extensive research into materials with the objective of creating a new type of balance which would be as light as possible while having the maximum possible inertia. In 2004, DE BETHUNE registered its first patent for a titanium / platinum balance. In 2008, the fourth and latest generation of this titanium / platinum balance was introduced. It consists of titanium arms arranged in the form of an X, with four platinum inertia blocks and two gold studs for achieving dynamic poise. Since 2008, the DE BETHUNE Manufacture has gone still further in achieving an oscillator which allows the best possible regulation with the minimum loss of energy. This new balance wheel, which brings the DB2105s calibre to life, consists of a silicon disk surrounded by a platinum ring. This mechanical arrangement enables a perfectly poised balance to be created without requiring any adjustment of the poise after assembly. The efficiency of this DE BETHUNE regulating organ is 120% of horological standards. This balance is combined with a hairspring embodying the DE BETHUNE flat terminal curve, used in all calibres since 2003. The result is an oscillating unit, which represents a further step forward, in the long search for perfect isochronism, a quest started by Christian Huygens in 1675. The spring is assembled in a single plane and the geometry of the curve means that the coil of the balance spring is perfectly centred throughout the cycle of oscillation, the shock at the spring's points of attachment being minimised. Needing no adjustment, it is neither manipulated nor bent after assembly and the flat terminal curve therefore preserves the physical characteristics of the spring's material while having the mathematical qualities of a Phillips curve. As a result of the mirror effect of the balance wheel, this oscillating assembly magically reflects the concentric development of the spring and its curve. Its geometry is so perfect that it gives the impression of not moving. Only a few bright scintillations enable its highfrequency vibration to be perceived. The new DB2105s hand-wound mechanical calibre is 30 mm in diameter and is presented in three different versions: The first version has a movement with inverse Côte de Genève decoration. The steel parts are worked and chamfered by hand. The power reserve of more than six days is indicated through a window at the side of the movement positioned symmetrically with the balance. The second version has a movement in hardened non-magnetic steel, entirely flat polished. Again, the power reserve indication is at the side of the movement. The third version has a movement with inverted Côte de Genève decoration. The steel parts are worked and chamfered by hand. The power reserve indication is at 6 o'clock, by means of a recessed pointer.

CLASSICISM RHYMES WITH AESTHETICISM: THE DB25 COLLECTION This new calibre is used in the new creations of the DB25 collection. With its very pure aesthetic, this piece enables David Zanetta and Denis Flageollet to continue this skilful mixture in which aestheticism and technological innovation are blended to create unique timepieces. The case, which gives this piece its character, consists of three parts: a screw back and a bezel attached to a caseband. As an ultimate detail, the caseband is machined from a single block of metal so as to achieve lugs which are extremely slim but very strong. There is no welding and this result is achieved by 5-axis machining. The dials designed for these new timepieces are, in each case, unique on account of the significant skilled hand work carried out on each piece. In the first version, the silvered dial guilloché by hand consists of a central ring and an hour ring. The raised hour ring sets off the central guilloché radiating in 12 sectors as well as the barleycorn guilloché surrounding the dial. The three-dimensional moon phase display is at 12 o'clock. This moon phase display has an accuracy of 1 lunar day in 123 years. It consists of two hemispheres, one in steel and the other in platinum. These hemispheres are fixed to each other and then polished. Together they are then flame-blued by hand. The steel part becomes blued through the effect of oxidation while the platinum part preserves its natural colour. The second version of the dial displays a sky dotted with gold stars and set with the spherical moon. To create this sky, five different operations have to be carried out. Starting with a steel sheet, little holes are pieced which are then enlarged into the shape of stars. Little pieces of gold are pressed into the metal sheet which is then polished. Finally, this steel sheet is flame-blued to give it the colours of the sky. In executing these new timepieces, DE BETHUNE is demonstrating once more its philosophy which combines a respect for the culture and tradition of horology with the use of new technologies as well as exploiting new knowledge about materials.Technical description from the DB25LRS1V1Material : rose gold or white gold Case : drum Case dimensions : 44.6mm in diameter and 11.1mm thick Dial : silvered, guilloche by hand Hands : flame-blued steel, hand-polished Crystal : sapphire, 1800 Vickers hardness with double anti-reflective treatment Crown : screw-down at 3 o'clock – settings in 3 positions Movement : DB2105si – hand-wound mechanical – “Côtes de Genève”decoration, steel chamfered and polished by hand – self-adjusting double spring barrel – silicon annular balance with flat terminal curve Functions : hour, minute - moon phase indication - power reserve indicator on the back Jewels : 29 Frequency : 28'800 vibrations per hour Power reserve : 6 days Reference : DB25LRS1V1 case in rose gold – movement with inverse Côte de Genève
DB25LWS1V1 case in white gold - movement with inverse Côte de Genève Technical description from the DB25LWS3V2 Material : white gold Case : drum Case dimensions : 44.6mm in diameter and 11.1mm thick Dial : flame-blued sky dotted with gold stars Hands : flame-blued steel, hand-polished Crystal : sapphire, 1800 Vickers hardness with double anti-reflective treatmentCrown : screw-down at 3 o'clock – settings in 3 positions Movement : DB2105si – hand-wound mechanical – movement in hardened nonmagnetic steel, steel chamfered and polished by hand – self-adjusting double spring barrel – silicon annular balance with flat terminal curve Functions : hour, minute - moon phase indication - power reserve indicator on the back
Jewels : 29
Frequency : 28'800 vibrations per hour Power reserve : 6 days Reference : DB25LWS3V2 case in white gold – movement in hardened non-magnetic steel DE BETHUNE EN DATE 2002
The start of the De Bethune Manufacture. First collection based on four different models. Realisation of an unique minute repeater striking watch with perpetual calendar and equation of time. 2003
Launch of two unique pieces: a perpetual calendar with a large date and a strike activated by a water-resistant pusher, as well as the first table-clock with a striking marine movement, double spring barrels and a constant-force escapement.
Six new models join the basic collection. 2004
First generation of the titanium/platinum balance and balance spring with flat terminal curve. Appearance of the system of the spherical moon rotating on its own axis.
First mechanical calibre DB2004 entirely manufactured within the workshops. Launch of the DB15 collection with perpetual calendar. 2005
Mechanical calibre with power reserve (DB2014).
Introduction of the DBS collection and the first haute joaillerie watch (DBL). Second generation of the titanium/platinum balance and balance spring with flat terminal curve. 2006
Revolution with the first temperature-compensated balance and balance spring, with the escape wheel and lever in silicon.
Third generation of the titanium/platinum balance and balance spring with flat terminal curve protected by the triple-parachute anti-shock system.
Development of two new manufactured calibres: chronograph calibre DB2034 and automatic calibre DB2024 with a central shock-absorber system for the ceramic ball-bearing.
Launch of a sports watch case with three models, DB20GMT, DB20QI and DB22, and a look towards the future with a digital watch (DBDigitale).
First Dream Watch: co-axial chronograph with cradle case. 2007
Presentation of research into a new annular balance in titanium with platinum mass.
Design of an eighth collection: DB24 with a mechanism for controlling the speed of automatic winding on the back.
Deposit of the patent for spring barrel with reduced friction. 2008
Dream Watch One with annular balance in silicon / platinum. Dream Watch Two with a silicon / titanium tourbillon weighing less than 0.18 grams and the temperature-compensated silicon / platinum balance. Introduction of the DB25 collection, the first classic watch with an automatic calibre, and the DB26 collection, perpetual calendar with a pivoted cradle case.
Presentation of the DB24 with the system for regulating the speed of automatic winding on the back and on the dial. Mechanical calibre with power reserve of 6 days (DB2015). 2009
First commercialised series of Dream Watch One. Presentation of Dream Watch One with silicon tourbillon.
New jewellery pieces with diamonds and blue baguette sapphires.
Three new calibres manufactured: DB2005, DB2016 and DB2009 2010
New DB2105s production calibre with silicon / platinum balance wheel Presentation of the DB25 moon phase and the DB25 with sky and stars DE BETHUNE AT A GLANCE Address: MANUFACTURE
De Bethune SA Granges-Jaccard
6 CH - 1454 La Chaux – l'Auberson
Tel. +41 24 4542281
Fax + 41 24 4542317
info@debethune.ch
www.debethune.ch
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