DB25L Starry Sky comes in 40mm and 44mm. Functions of the DB25L Starry Sky include hours, minutes, power reserve situated in the back, and a spherical moon-phase indication at 12 o'clock. Movement features a mechanical caliber with manual winding. When adjusting, setting the spherical moon-phase and the time by means of the crown (3 positions).
The technical features of the 40mm include 245 parts with 27 jewels. For the 44mm, there are 286 parts with 29 jewels. The diameter of both calibers are 30mm. Power reserve for 6 days, ensured by a self-regulating twin barrel. Specificities include silicon and white gold balance wheel, "De Bethune" balance-spring with flat terminal curve, silicon escape wheel, spherical moon-phase indication accurate to a degree of one lunar day every 122 years, and a triple pare-chute shock-absorbing system. Frequency is 28,800 vibrations per hour. Adornment features plate and barrel bridge cover in mirror-polished steel, hand snailed barrels, and hand-polished chamfered steel parts.
Hands are curved in hand-polished steel. Spherical moon-phase indication in palladium and flamed-blued steel with an accuracy of one lunar day every 122 years at 12 o'clock. The dial features a star-studded sky blued mirror-polished titanium, inlaid with white gold stars and diamonds. Polished white gold hours markers.
The 40mm case is 11.7mm thick while the 44mm case thickness is 11.2mm. Both cases are in white gold. The lugs are integrated and hollowed. Crystal is in hard-mineral (hardness of 1800 Vickers) with double anti-reflective coating. Water resistant to 30 meters. The strap is extra-supple alligator skin with alligator lining. The pin-buckle is in white gold.