Unveiled at SIHH 2018 in a pink gold case edition, the new Overseas ultra-thin perpetual calendar is one of the slimmest on the market houses the iconic Vacheron Constantin Caliber 1120 QP/1, an ultra-thin mechanical self-winding movement powering perpetual calendar and moon-phase indications. The 4.05 mm thick ultra-slim movement comprising 276 parts keeps track of calendar irregularities with no need for correction until 2100.
Beating at a frequency of 2.5 Hz and endowed with an approximately 40-hour power reserve, it drives the hours and minutes, perpetual calendar – day of the week, date, month and leap year on a 48-month counter – as well as moon-phase functions.
Its 18 carats 5N pink gold case, measuring 41.5 mm in diameter and water-resistant to 50 metres, frames a translucent silver-toned lacquered dial punctuated by 18 carats gold hands and hour-markers highlighted with luminescent material, while the transparent sapphire crystal caseback reveals a 22 carats oscillating weight adorned with a wind rose.
Secured by an interchangeable 18 carats 5N pink gold folding clasp, the equally interchangeable dark blue alligator or rubber straps provide an extremely chic way of accentuating the refinement of this model.
Model: Overseas ultra-thin perpetual calendar
Hallmark of Geneva certified timepiece
Caliber 1120 QP/1
Developed and manufactured by Vacheron Constantin
22K gold Overseas oscillating weight
29.6 mm (12½’’’) diameter, 4.05 mm thick
Approximately 40 hours of power reserve
2.75 Hz (19,800 vibrations/hour)
Hours and minutes
Perpetual calendar (date, day of the week, month, leap year)
18K 5N pink 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)
Translucent silver-lacquered, sunburst satin-finished base with velvet-finished minute-track
18K 5N pink gold hour-markers and hours & minutes hands highlighted with white luminescent material
Blue Mississippiensis alligator leather featuring a black nubuck lining with a micro-perforated effect, hand-stitched, large square scales
Delivered with a second strap in blue rubber
Clasp 18K 5N pink gold triple-blade folding clasp with push-pieces and patented interchangeable system compatible with both straps