De Bethune DB28 Grand Bleu Ref: DB28GSV2AN

A new calibre; water resistance to more than 100 metres; excellent readability including in the darkest depths thanks to ingenious lighting inside the movement and a new photoluminescent blue, a different bezel that rotates this time with the crystal to indicate dive times; a titanium case for a light feel and a rubber strap for convenience; along with a five-day power reserve.

Ref: DB28GSV2AN

FUNCTIONS:

Hours, minutes, seconds, power reserve indication between 9 and 10 o'clock, unidirectional rotating bezel, manual dial.

DIAL:

Satin-brushed grade 5 titanium minutes dial with cut-out arabic numeerals, rotating bezel,= crystal with metallised minutes ring, power-reserve indicator between 9 and 10 o'clock. 

HANDS:

Blue titanium hours and minutes hands with polished steel insert and second blued steel insert, luminescent tip - polished steel seconds hand with luminscent tip.

CASE:

Black zirconium case middle with "microlight" decoration, brushed and polished grade 5 titanium caseback and bezel - diameter 44mm - thickness 12.8mm. FLoating lugs in brushed grade 5 titanium, De Bethune patent (2006)

GLASS:

Sapphire crystal, 1800 vickers hardness with double anti-reflective treatment. crown at 12'o'clock, setting in two positions.

BACK:

Open in brushed grade 5 titanium.
WATER RESISTANCE:

10ATM

CALIBRE:

DB2080 Calibre

MOVEMENT:

Mechanical Hand-wound. Diameter 30mm - 400 Parts - Mirror-polished grade 5 titanium motion-work bridge - plate and barrel bridge covers in hand-smoothed grade 5 titanium and adorned with "microlight engraving" De Bethune innovation (2007) - Hand-snailed barrels - Hand-polished, flame-blued and chamfered steel parts. Self-regulating twin barrel, De Bethune innovation (2004). Titanium balance wheel with white gold inserts, De Bethune patent (2016). "De Bethune" balance-spring with flat terminal curve, De Bethune patent (2006). Silicon escape wheel. Triple pare-chute shock absorbing system, De Bethune innovation (2005). Dial lighting produced by an entirely mechanical means working on the dynamo principle powered by a twin barrel and manually controlled via a pusher, De Bethune innovation (2019). 

JEWELLING:

35 jewels

FREQUENCY:

28,8000 vibrations per hour

POWER RESERVE:

5 Days

STRAP:

Natural rubber strap + 1 canvas / leather strap. Buckle: Folding clasp in brushed grade 5 titanium.

OSTER JEWELERS IS A DE BETHUNE AUTHORIZED RETAIL PARTNER