De Bethune DB28

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Movement: Manual, Calibre DB 2115, 29 jewels, 28,800 vph, twin-barrel, decorated and assembled by hand, Swiss Made

Power reserve: 144 hours (6 days) indicated on the back of the case

Functions: Hours, minutes, moonphase, power reserve

Case material: Titanium

Bezel material: Steel

Case size: 43.00 mm

Case height: 11.30 mm

Dial: Skeletonized

Water resistance: N/A

Strap: Extra-supple alligator leather with pin buckle

Crystal: Sapphire, AR-coated

Case back: Solid, hunter-type back with power reserve display

Jewelling : 29 jewels

Frequency : 28,800 vibrations per hour

 

 

 

DB28

 

Technical description

 

Functions : 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.

 

 

 

* Patents registered by the Manufacture De Bethune

[obchodnik-o3]

tak do tohoto by som nesiel

[nxt]

hodinky pro kovanyho fandu Star Treku...

[sureshot]

no za mna teda jednoznacne ano, a lunarne fazy s tou gulickou nemaju chybu.