De Bethune reinvents the spirit of the tourbillon in a manner such as Abraham-Louis Breguet may have dreamed of, but by taking it to a level of aesthetic and technical incandescence that goes well beyond the known limits of horological kinetics.
Thanks to new technologies, De Bethune has therefore created a silicon-titanium tourbillon in a 0.18 g carriage spinning once every thirty seconds at its axis, and a balance oscillating at a frequency of 36,000 vibrations per hour. This carriage is the lightest on the market (classic counterparts weigh four times as much) and comprises 50 parts, of which the lightest weighs less than 0.0001 grams and the "heaviest" 0.0276 grams!
De Bethune Tourbillon Regulator
Technical description Functions :-Hours & minutes
-Central jumping seconds
-Movement operating indicator at 12 o'clock
-Seconds indicator 30''
Movement DB2109 – mechanical hand-wound
Mainplate hand-decorated and snailed, hand-chamfered and polished steel parts, De Bethune stripes
Natural fired-blue titanium bridge
Self-regulating twin barrel*
Thermocompensated silicon/platinum balance wheel*
Balance-spring with flat terminal curve*
Ultra-light 0.18 gram silicon/titanium tourbillon carriage*
Jewelling: 45 jewels
Frequency: 36,000 vibrations per hour
Power reserve: 100 hours
Shaped case 44.6 mm in diameter in white or rose gold
Thickness: 10.8 mm
Glass: sapphire crystal with double glareproofing, 1800 Vickers
Crown: screw-locked at 12 o'clock – adjustable in two positions
Dial: De Bethune star-studded sky in blued steel with gold stars – Sterling silver hours and minutes ring
Hands: hand-polished steel
Open back revealing the 30-second rotating silicon/titanium tourbillon with jumping seconds
Strap : extra-supple alligator leather with pin buckle
* Patents registered by the Manufacture De Bethune
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