DB25

Perpetual Sky

Ref: DB25SQPV2

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De Bethune’s vision of the perpetual calendar is a masterful fusion of technical sophistication and poetic artistry. Housed in an elegant 40mm case, this exceptional timepiece seamlessly integrates moon phases, a celestial sky, and an advanced perpetual calendar, embodying the Manufacture’s commitment to both horological finesse and cutting-edge innovation.

Functions

Hours, Minutes, Spherical Moon Phase and Leap-Year Indicators at 12 o’clock, Perpetual calendar indicating the month at 3 o’clock, the date at 6 o’clock and the day of the week at 9 o’clock

Case

Material

Grade 5 titanium

Diameter

40 mm

Thickness

11.3 mm

LugS

Integrated, hollowed lugs

Crystal

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

CASE back

Open case back in polished grade 5 titanium
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Calibre DB2005V3

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
  • Spherical moon phase indication accurate to a degree of one lunar day every 122 years – De Bethune Patent (2004)
  • Triple pare-chute shock-absorbing system, De Bethune Innovation (2005)

Display

DIAL

  • Blued polished titanium starry sky with white gold stars – milky way created by laser micro-engraving and 24-carat gold leaf inlay
  • Silver-toned hours and minutes ring with Roman numerals and transfers
  • Blued date ring with 3N-gilded transfers
  • Perpetual calendar apertures indicating the day of the week at 9 o’clock and the month at 3 o’clock on blue discs with 3N-glided transfers – sub-dial at 6 o’clock indicating the day of the month – leap year indicated by a gold pastille appearing in the starry sky at 12 o’clock
  • Spherical moon phase indication in palladium and blued steel with an accuracy of one lunar day every 122 years at 12 o’clock – De Bethune Patent (2004)

HANDS

Hand-curved, mirror-polished yellow gold hands

Specifications

Watch

Case

Material

Grade 5 titanium

Diameter

40 mm

Thickness

11.3 mm

Lugs

Integrated, hollowed lugs

Crystal

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

CASE back 

Open case back in polished grade 5 titanium
Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating

Display

Dial

  • Blued polished titanium starry sky with white gold stars – milky way created by laser micro-engraving and 24-carat gold leaf inlay
  • Silver-toned hours and minutes ring with Roman numerals and transfers
  • Blued date ring with 3N-gilded transfers
  • Perpetual calendar apertures indicating the day of the week at 9 o’clock and the month at 3 o’clock on blue discs with 3N-glided transfers – sub-dial at 6 o’clock indicating the day of the month – leap year indicated by a gold pastille appearing in the starry sky at 12 o’clock
  • Spherical moon phase indication in palladium and blued steel with an accuracy of one lunar day every 122 years at 12 o’clock – De Bethune Patent (2004)

Hands

Hand-curved, mirror-polished yellow gold 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

339

Jewelling

27 jewels

Diameter

30 mm

Frequency

28’800 vibrations per hour

Adornment

  • Polished Grade 5 titanium cover plate
  • Mirror-polished steel barrel bridge cover
  • Hand-snailed barrels
  • Handcrafted finishes and decorations

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
  • Spherical moon phase indication accurate to a degree of one lunar day every 122 years – De Bethune Patent (2004)
  • Triple pare-chute shock-absorbing system, De Bethune Innovation (2005)
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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