DB28XS

Sea Tourbillon

Ref: DB28XST

Back to collection

A sea of blued titanium: a high-frequency tourbillon and the comfort of a mirror-polished titanium DB28 case. Mesmerising design dedicated to contemporary precision.

Functions

Hours, Minutes, 30” indicator Ultra-light De Bethune Tourbillon Cage at 6 o’clock

Case

Material

Polished grade 5 titanium

Diameter

38.7 mm

Thickness

8 mm

LugS

Polished grade 5 titanium floating lugs – De Bethune Patent (2006)

Crystal

Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Case Back

Screwed case back polished titanium with double anti-reflective coating

Calibre DB2009V7

TYPE

Mechanical hand-wound movement

POWER RESERVE

5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004)

Technical features

  • Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016)
  • “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006)
  • Silicon escape wheel
  • Ultra-light De Bethune 30’’ tourbillon in silicon and titanium De Bethune Innovation (2008)

Display

DIAL

  • Titanium hour ring with blued microlight decoration and
    polished hour markers
  • Blued grade 5 circular satin titanium minutes and seconds ring  
  • Barrel bridge cover and triangular central bridge in blued grade 5 titanium with random guilloché and drawn chamfered contours

HANDS

Polished titanium hands

Specifications

Watch

Case

Material

Polished grade 5

Diameter

38.7 mm

Thickness

8 mm

Lugs

Polished grade 5 titanium floating lugs – De Bethune Patent (2006)

Crystal

Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Case back 

Screwed case back in polished titanium with double anti-reflective coating

Display

Dial

Titanium hour ring with blued microlight decoration and
polished hour markers

Blued grade 5 circular satin titanium minutes and seconds ring  

Barrel bridge cover and triangular central bridge in blued grade 5 titanium with random guilloché and drawn chamfered contours

Hands

Polished titanium hands

Calibre

TYPE

Mechanical hand-wound movement

POWER RESERVE

5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004)

Number of parts

239

Jewelling

33 jewels

Diameter

30 mm

Frequency

36’000 vibrations per hour

Adornment

  • Hand-crafted finishing and decoration

Technical features

  • Titanium balance wheel with white gold inserts, optimised for temperature differences and air penetration , De Bethune Patent (2016)
  • “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006)
  • Silicon escape wheel
  • Ultra-light De Bethune 30’’ tourbillon in silicon and titanium De Bethune Innovation (2008)
Resources

Technical Description

Download FR
Download EN

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Contact

For any questions, our
team is at your disposal

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