De Bethune

Current collection

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  • De Bethune

DB29

Tourbillon Maxichrono

Reference: DB29RS1

With its distinctive roundness and its hunter case back featuring a rare fully invisible hinge, the DB29 immediately recalls the charm of 18th century pocket watches. It celebrates watchmaking tradition while embarking the most complicated and advanced movements such as the De Bethune tourbillion or the revolutionary Maxichrono.

functions

Hours, Minutes,Mono-pusher chronograph with 24 hours, 60 minutes and 60 seconds counters, 30’’ indicator via the ultra-light De Bethune tourbillon cage on the back

display

Dial:
Three dimensional silver dial constructed on different levels to maximize readability. From the center to the periphery: central hours counter – hour ring – minutes ring and minutes counter – 1/10th of second graduated outer ring for seconds counter

Hands:
5 central curved hands – Hand-polished and flamed-blued steel for hours and minutes hands and chronograph hours and seconds indicators – Chronograph minutes indicator in rose gold

case

Rose gold 5N – diameter 46 mm – thickness 11,7 mm 

Attachments:
Cone shaped

Glass:
Sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment
Crown at 3 o’clock, setting in two positions

Back:
Screwed down open back 30’’ indicator via the ultra-light De Bethune tourbillon cage and on the chronograph mechanism
Sapphire crystal (hardness of 1800 Vickers) with double anti-reflective coating protected by a polished rose gold 5N dome with invisible hinge

calibre

DB2039 calibre

Movement:
Mechanical hand-wound 

Diameter 30 mm – 450 parts – Bridges mirror-polished, sandblasted and snailed by hand – Steel parts polished and chamfered by hand

- Self-regulating twin barrel, De Bethune Innovation (2004)
- Silicon annular balance encircled by a white gold ring, De Bethune Patent (2010)
- "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)
- "De Bethune Absolute Clutch ", De Bethune Patent (2014)

Jewelling:
53 jewels

Frequency:
36,000 vibrations per hour

Power reserve:
5 days

strap

Extra-supple alligator leather, alligator lining

In the same  collection

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