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
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
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
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
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