Technical Description:
Functions: hours - minutes - date
Movement: Calibre S233 – mechanical self-winding
Mainplate hand-decorated and snailed, hand-chamfered and polished steel parts
The S233 movement incorporates the major De Bethune technological breakthroughs:
Self-regulating twin barrel* – The barrels are specifically designed to eliminate friction and efficiently transmit a maximum of energy.
Silicon/white gold 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* which reduces potential disturbances due to impacts to an absolute minimum and protects the balance-spring pivots. Silicon escape wheel - Titanium/heavy metal oscillating weight
34 jewels - 28,800 vibrations per hour - power reserve of 6 days
Case distinctive shape, 43 mm in diameter, made from mirror-polished grade 5 titanium
Thickness: 12 mm
Lugs: short, 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
Back: solid, in mirror-polished grade 5 titanium with window revealing the balance wheel
Dial: silver-toned microlight – chapter ring with Roman numerals – minute circle with Arabic numerals placed around the rim of the dial. Central date.
Hands: blued stainless steel
Strap: extra-supple alligator leather with pin buckle
* Patents registered by the Manufacture De Bethune
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