DB25LT

Specifications

About this reference

Collectors and lovers of fine watchmaking will appreciate the refined elegance of a classic timepiece as much as the discreet wearing of a highly technological power and accuracy movement. Specification: Case: Platinum; Case · Diameter: 44 mm; Case · Thickness: 11,6 mm; Case · Lugs: Fixed and hollowed lugs; Case · Crystal: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Case · Case back: Sapphire crystal (1800 Vickers hardness), with double anti-reflective coating; Function: Hours, minutes, spherical moon-phase indication, 30’’ indicator via the ultra-light De Bethune tourbillon cage; Calibre · Calibre: DB2145; Calibre · Type: Mechanical hand-wound movement; Calibre · Power reserve: 5 days, ensured by a self-regulating twin barrel, De Bethune Innovation (2004); Calibre · Number of parts: 287; Calibre · Jewelling: 31 jewels; Calibre · Diameter: 30 mm; Calibre · Frequency: 28’800 vibrations per hour; Calibre · Adornment: Hand-crafted finishing and decoration; Calibre: Chamfered and hand-polished steel parts; Calibre: Mirror-polished and flame-blued steel components; Dial: 5N rose gold in hand-guilloché with 12 radiating sectors; Dial: De Bethune star-studded sky in mirror-polished flame-blued steel set with yellow gold stars with spherical moon-phase indication in platinum and flame-blued steel with an accuracy of one lunar day every 122 years at 12 o’clock, De Bethune Patent (2004); Dial: Hands:; Dial: Curved, in hand-polished flame-blued steel; Technical features of calibre: Silicon annular balance encircled by a white gold ring, De Bethune Patent (2010); Technical features of calibre: “De Bethune” balance-spring with flat terminal curve, De Bethune Patent (2006); Technical features of calibre: Silicon escape wheel; Technical features of calibre: Ultra-light De Bethune 30’’ tourbillon in silicon and titanium, De Bethune Innovation (2008); Technical features of calibre: Spherical moon-phase indication accurate to a degree of one lunar day every 122 years, De Bethune Patent (2004).