The Overseas Ultra-thin Perpetual Calendar displays its technical complexity with the collection’s characteristically understated air of distinction. This timepiece bearing the Hallmark of Geneva certification and available exclusively in Vacheron Constantin boutiques houses the emblematic Vacheron Constantin Calibre 1120 QP, an ultra-thin mechanical self-winding movement equipped with a perpetual calendar complete with moon phases.
This function calls for impressive feats of miniaturisation in order to adjust to calendar irregularities while requiring no adjustment until the year 2100, as well as to accommodate its 276 components within a space barely 4.05 mm thick.
Beating a the frequency of 19,800 vibrations per hour and endowed with an approximately 40-hour power reserve, the mechanism drives the hours, minutes, perpetual calendar – with day of the week, date, month and 48-month leap-year indications – as well as moon phases.
The 18K white gold 41.5 mm-diameter case frames a grey dial lightly punctuated by blue accents, while the sapphire crystal caseback reveals a 22K oscillating weight adorned with a wind rose and subtle finishes.
This new reference radiating a pleasing appearance in every situation is fitted with an interchangeable white gold bracelet complete with easy-fit system, complemented by two leather and rubber variations, both secured by a white gold buckle.
Technical details
Model: Overseas ultra-thin perpetual calendar
Reference: 4300V/120G-B102
Hallmark of Geneva certified timepiece
Movement
Caliber 1120 QP
Developed and manufactured by Vacheron Constantin
Mechanical, self-winding
22K gold Overseas oscillating weight
29.6 mm (12’’’½) diameter, 4.05 mm thick
Approximately 40 hours of power reserve
2.75 Hz (19,800 vibrations/hour)
276 components
36 jewels
Indications
Hours and minutes
Perpetual calendar (date, day of the week, month, leap year)
Moon phases
Case
18K white gold
41.5 mm diameter, 8.1 mm thick
Soft iron casing ring ensuring anti-magnetic protection
Transparent sapphire crystal caseback
Water-resistance tested at a pressure of 5 bar (approx. 50 metres)
Dial
Translucent grey-lacquered, sunburst satin-finished base with velvet-finished minute-track
18K gold hour-markers and hours & minutes hands highlighted with white luminescent material
Bracelet/Straps
18K white gold bracelet, half Maltese cross-shaped polished and satin-brushed links
Delivered with a second strap in dark grey Mississippiensis alligator leather featuring a black nubuck lining with a micro-perforated effect, hand-stitched, large square scales
Delivered with a third strap in black rubber
Clasps
18K gold bracelet secured by an 18K white gold triple-blade folding clasp with push-pieces and comfort-adjustment system
Each additional strap comes fitted with an 18K white gold buckle
Packaging
Presentation box: With a luxury replica watch winder
Accessory: Delivered with a corrector pen