DB28 Kind of Blue Tourbillon
Reference:
DB28TBMW
In honour of the colour blue, a fundamental element of its identity, De Bethune presents a monochromatic range of its iconic model the DB28 Tourbillon. Radical and magnetic, the colour is created by an artisanal and natural treatment of the metals.
functions
Hours, Minutes, 30’’ indicator via the ultra-light De Bethune tourbillon cage at 6 o’clock, Power reserve situated on the back
display
Dial:
Blued rade 5 polished titanium with a Milky Way patterns – hours ring with rose gold hour-markers – Blued grade 5 satin-polished titanium minutes ring – Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock
Hands:
Hand-polished rose gold
Blued rade 5 polished titanium with a Milky Way patterns – hours ring with rose gold hour-markers – Blued grade 5 satin-polished titanium minutes ring – Ultra-light De Bethune 30’’ tourbillon in silicon and titanium at 6 o’clock
Hands:
Hand-polished rose gold
case
Blued grade 5 mirror-polished titanium – diameter 42.6 mm – thickness 9.20 mm
Attachments:
Short or long floating lugs in blued grade 5 mirror-polished titanium, De Bethune Patent (2006)
Glass:
Sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment
Crown at 12 o’clock, setting in two positions
Back:
Open back in blued grade 5 mirror-polished titanium that opens on a linear power reserve in rose gold 5N
Sapphire crystal (hardness of 1800 Vickers) with double anti-reflective coating
Attachments:
Short or long floating lugs in blued grade 5 mirror-polished titanium, De Bethune Patent (2006)
Glass:
Sapphire crystal, 1800 Vickers hardness with double anti-reflective treatment
Crown at 12 o’clock, setting in two positions
Back:
Open back in blued grade 5 mirror-polished titanium that opens on a linear power reserve in rose gold 5N
Sapphire crystal (hardness of 1800 Vickers) with double anti-reflective coating
calibre
DB2019 calibre
Movement:
Mechanical hand-wound
Diameter 30 mm – 282 parts – Motion works bridge and cover plate in grade 5 titanium, mirror-polished and blued by hand – Bridge cover on the barrel decorated in grade 5 mirror-polished and blued titanium, encrusted by hand with stars in white gold – Rose-work grinding by hand on the barrels – Decoration on power reserve indicator in grade 5 titanium “De Bethune” concentric graining and blued by hand – Steel parts bevelled and flame-blued by hand
- Self-regulating twin barrel, De Bethune Innovation (2004)
- Silicon balance wheel 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)
Jewelling:
38 jewels
Frequency:
36,000 vibrations per hour
Power reserve:
5 days
Movement:
Mechanical hand-wound
Diameter 30 mm – 282 parts – Motion works bridge and cover plate in grade 5 titanium, mirror-polished and blued by hand – Bridge cover on the barrel decorated in grade 5 mirror-polished and blued titanium, encrusted by hand with stars in white gold – Rose-work grinding by hand on the barrels – Decoration on power reserve indicator in grade 5 titanium “De Bethune” concentric graining and blued by hand – Steel parts bevelled and flame-blued by hand
- Self-regulating twin barrel, De Bethune Innovation (2004)
- Silicon balance wheel 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)
Jewelling:
38 jewels
Frequency:
36,000 vibrations per hour
Power reserve:
5 days
strap
Extra-supple alligator leather, alligator lining
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