DB28GS "Yellow Submarine"
A diver’s watch in the colors of fire with a 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.
Hours, Minutes, Seconds, Power reserve indication between 9 and 10 o’clock, unidirectional rotating bezel, manual dial
Dial:
Satin-brushed and yellow grade 5 titanium minutes dial with cut-out Arabic numerals, Rotating bezel crystal with metallised minutes ring, Power-reserve indicator between 9 and 10 o’clock
Hands:
Yellow titanium hours and minutes hands with inserts, luminescent tip - Yellow titanium sandblasted by hand minute hand, luminescent tip - Polished steel seconds hand with luminescent tip
Black zirconium case middle with “Microlight” decoration, yellow brushed grade 5 titanium caseback and bezel – diameter 44 mm – thickness 12,8 mm
Attachments:
Floating lugs in yellow 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 yellow brushed grade 5 titanium
Water Resistance:
10ATM
Movement:
Mechanical hand-wound
Diameter 30 mm – 400 parts – Mirror- polished yellow grade 5 titanium motion-work bridge – Plate and barrel bridge covers in hand-smoothed yellow grade 5 titanium and adorned with “Microlight engraving” – Hand snailed barrels – Hand-polished 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:
28,800 vibrations per hour
Power reserve:
5 days
Natural rubber strap + 1 canvas / leather strap
Buckle: Folding clasp + pin buckle in yellow brushed grade 5 titanium
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