Spherical moon, blued steel, silicon/palladium balance wheel, triple pare-chute shock-absorbing system and “floating lugs”… De Bethune is revisiting its classics and reasserting its identity codes through the DB28, a strongly identifiable timepiece endowed with the signature House style features and conveying its resolutely avant-garde vision of the watchmaking art!
Technical descriptionFunctions : hours – minutes- spherical moon-phase indicator at 6 o’clock – power-reserve indication – performance indicator
Movement :Calibre DB 2115 – mechanical hand-wound
Mainplate hand-decorated and snailed, hand-chamfered and polished steel parts, De Bethune stripes
Self-regulating twin barrel*- The barrels are specifically designed to eliminate friction and efficiently transmit a maximum of energy.
Silicon/palladium balance wheel* with flat terminal curve – Its exceptional lightness enables this balance wheel to reduce mechanical friction and deliver an ideal inertia/mass ratio. The principle of the flat end curve, placed on the same level as the balance-spring, compensates for off-centering and facilitates its fastening.
Triple pare-chute shock-absorbing system
* reduces potential disturbances due to impacts to an absolute minimum and protects the balance-spring pivots.
Exclusive three-dimensional moon-phase indication* by means of a platinum and blued steel sphere revolving on its axis and accurate to within one day every 122 years.
Jewelling : 29 jewels
Frequency : 28,800 vibrations per hour
6-day power reserve indicated on the back of the case
Shaped case : 43 mm in diameter, made from grade 5 titanium or rose gold, 11.3 mm thick
Lugs : mobile or floating type
* in grade 5 titanium with pivoting system. Their springs follow the shape of the wrist and its movements.
Glass: sapphire crystal with double glareproofing, 1800 Vickers
Crown: screw-locked at 12 o’clock – adjustable in two positions
Dial: polished grade 5 titanium and silvered minute circle – blued steel chapter ring – best-performance zone indication at 3 o’clock between a blue and red dot
Hands: blued or polished stainless steel
Solid “hunter-type” back inspired by pocket-watch, with power-reserve display.
Strap : extra-supple alligator leather with pin buckle
* Patents registered by the Manufacture De Bethune 
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