De Bethune Perpetual Calendar DB 25 QP

With this new timepiece, De Bethune interprets the perpetual calendar complication as poetic timepiece and combines horological finesse with the cutting-edge mechanisms of the Manufacture by uniting moon phases, a star-studded sky and a perpetual calendar within an exceptional timepiece.

The 44 mm-diameter round case is inspired by a drum shape and features slender and resolutely classic lines, subtly enlivened by the hollowed lugs characteristic of the DB25 collection.
The finesse of the decorations and the purity of the hand-guilloché silver-toned dial with its 12 radiating sectors accentuate the readability, notably based on the set of annular appliques delineating the subdials and the chapter ring. At 12 o’clock, a titanium and blued steel sphere sits enthroned amid a star-studded sky also incorporating a leap-year indicator. The date is read off on a subdial at 6 o’clock, while the day of the week and month apertures are respectively positioned at 9 and 3 o’clock.

De Bethune DB25QP Calendrier perpetual (Perpetual Calendar) is equipped with an in-house developed automatic mechanical Calibre DB2024 QP, which is benefiting from the latest research and technology of the Manufacture and notably including a perpetual calendar, a spherical moon-phase display featuring a “1 day in 122 years” level of accuracy, a double self-regulating barrel, a triple pare-chute shock-absorbing system and a titanium/platinum balance.

Technical details
Functions
Hours, minutes, date at 6 o’clock, perpetual calendar indicating days at 9 o’clock, months at 3 o’clock
De Bethune spherical moon-phase and leap-year indicator subdial at 12 o’clock.

Movement
Calibre DB 2024 QP – automatic mechanical movement
335 components – hand-decorated with circular-grained, snailed, chamfered and polished steel parts, Côtes De Bethune
Self-regulating twin barrel
Titanium/platinum balance wheel with flat terminal curve
Triple pare-chute shock-absorbing system
Exclusive three-dimensional moon-phase indication
Jewelling : 29
Frequency : 28,800 vibrations per hour
Power reserve : 5 days

Case
Classic round drum-shaped case, 44 mm in diameter and 10.8 mm thick – Integrated hollowed lugs
Crystal: Sapphire crystal, 1800 Vickers hardness with double anti‐reflective treatment
Crown: Screw‐down at 3 o’clock, setting in two positions
Back: Horizontally controlled power-reserve indicator

Dial
Silvered hand-guilloché dial with apertures indicating days of the week and months, subdial indicating days of the month at 6 o’clock
De Bethune star-studded sky in flame-blued steel with gold stars
Hands: Hand-polished flame-blued steel

Strap
Extra-supple alligator leather with pin buckle

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