The FIFTYSIX® complete calendar model is the collection highlight. Behind the understated elegance of its monochrome dial with opaline-sunburst effect lies one of the horological complications most appreciated by discerning connoisseurs and collectors. The indications of the day of the week, date, month and moon phase are driven by a self-winding movement, Calibre 2460 QCL/1, equipped with a 22 carats openworked oscillating weight adorned with the Maltese cross emblem.

Its construction and its extreme precision mean that the moon-phase function requires adjustment only once every 122 years (compared with once every three years or a standard moon phase).

The collection’s characteristic dial is graced with two rectangular apertures at 12 o’clock, respectively indicating the month and the day of the week. The date is displayed by a central gold hand, while the moon disc at 6 o’clock features a blue night sky and 18K gold moons.

A 40 mm-diameter case in steel or 18 carats 5N pink gold; gold Arabic numerals, hour-markers and hours & minutes hands; alligator leather strap with steel folding clasp or pink gold pin buckle depending on the model: the FIFTYSIX® complete calendar embodies a perfect blend of Vacheron Constantin’s stylish elegance and the sophistication of its mechanical functions.

Reference	:	4000E/000R-B438 Hallmark of Geneva
Mouvement	:	Calibre 2460 QCL/1 Developed and manufactured by Vacheron Constantin Mechanical, self-winding
Diameter	:	29 mm (11 ¼’’’)
Thickness	:	5.4 mm
Power reserve	:	Approximately 40 hours
Frequency	:	4 Hz (28,800 vibrations/hour)
Components	:	308
Jewels	:	27
Indications	:	Hours, minutes, central seconds Complete calendar (day of the week, date, month, precision moon phase) Age of the moon
Case	:	18K 5N pink gold
Diameter	:	40 mm
Thickness	:	11.6 mm
Caseback	:	Transparent sapphire crystal
Water-resistant	:	Tested at a pressure of 3 bar (approx. 30 metres)
Dial	:	Silvered, opaline center, sunburst exterior, snailed counters 18K 5N pink gold Arabic numerals
Hour-markers	:	18K 5N pink gold hour-markers highlighted by a luminescent material 18K 5N pink gold moons
Bracelet	:	Brown Mississippiensis alligator leather with calf inner shell and tone-on-tone stitching, square scales/td>
Buckle	:	18K 5N pink gold buckle Polished half Maltese cross-shaped

Reference	:	4600E/000A-B439 Hallmark of Geneva
Mouvement	:	Calibre 2460 QCL/1 Developed and manufactured by Vacheron Constantin Mechanical, self-winding
Diameter	:	29 mm (11 ¼’’’)
Thickness	:	5.4 mm
Power reserve	:	Approximately 40 hours
Frequency	:	4 Hz (28,800 vibrations/hour)
Components	:	308
Jewels	:	27
Indications	:	Hours, minutes, central seconds Complete calendar (day of the week, date, month, precision moon phase) Age of the moon
Case	:	Stainless steel
Diameter	:	40 mm
Thickness	:	11.6 mm
Caseback	:	Transparent sapphire crystal
Water-resistant	:	Tested at a pressure of 3 bar (approx. 30 metres)
Dial	:	Grey, opaline center, sunburst exterior, snailed counters 18K white gold Arabic numerals
Hour-markers	:	18K white gold hour-markers highlighted by a luminescent material 18K white gold moons
Bracelet	:	Dark grey Mississippiensis alligator leather with calf inner shell and tone-on-tone stitching, square scales/td>
Clasp	:	Stainless steel folding clasp Polished half Maltese cross-shaped