« il: Gennaio 19, 2011, 17:30:27 pm »
DB28
The case, in 18kt rose gold, or in titanium, measures 43mm X 11.3mm. It has a sapphire crystal and a solid “hunter-type” back inspired by pocket-watches, with a power-reserve display.
Movement is the Swiss hand-wind De Bethune in-house caliber DB2115 with 29 jewels, 28,800 vph and a power reserve of 6 days.
The mainplate is hand-decorated and snailed, hand-chamfered and with polished steel parts, finished with De Bethune stripes. Self-regulating twin barrel (the barrels are specifically designed to eliminate friction and efficiently transmit a maximum of energy).
It features a 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).
Functions are: hours, minutes, spherical moon-phase indicator at 6 o’clock, a power reserve indication and performance indicator. It has an exclusive three-dimensional moonphase indication by means of a platinum and blued steel sphere revolving on its axis and accurate to within one day every 122 years.
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