Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton Men's watch 4300V/120G-B946
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The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton 4300V/120G-B946 is one of the most technically impressive luxury sports watches you can buy. Unveiled at Watches & Wonders 2021, it combines a perpetual calendar with full skeletonisation in an 18K white gold case only 8.1mm thick, all on an integrated white gold bracelet.
Key Specifications
- Reference: 4300V/120G-B946
- Collection: Overseas
- Case: 41.5mm 18K white gold, 8.1mm thick
- Dial: Skeletonised with blue calendar rings and gold moon
- Movement: In-house self-winding Calibre 1120 QPSQ/1, Geneva Hallmark
- Frequency: 19,800 vph (2.75 Hz), 36 jewels, 276 components
- Power reserve: 40 hours
- Functions: Hours, minutes, perpetual calendar with day, date, month, leap year and moon phase
- Case back: Sapphire crystal display back
- Water resistance: 50m / 5 bar
- Bracelet: 18K white gold bracelet with folding clasp, plus rubber and leather straps (tool-free interchangeable)
A Perpetual Calendar in a Sports Watch
A perpetual calendar knows the length of every month and adjusts for leap years automatically. Once set, it shows the correct date until the year 2100 without manual correction. Vacheron Constantin first placed this complication in the Overseas in pink gold. In 2021 the brand added two white gold versions: the 4300V/120G-B945 with a blue lacquered dial and this skeletonised 4300V/120G-B946.
Design: Blue Rings Over an Open Movement
Skeletonising a perpetual calendar is one of the hardest jobs in watchmaking, because every bridge and plate must be cut away and hand-finished without weakening the mechanism. The 4300V/120G-B946 shows its calendar on blue rings set over the open movement: month at 12 o'clock, day at 9, date at 3 and moon phase at 6. White gold hands and applied markers carry luminescent material, and the polished hexagonal bezel references the Maltese cross.
The 8.1mm case slips under a cuff like a dress watch, while the brushed white gold bracelet and the tool-free strap system give it everyday sports-watch versatility.
Movement: Calibre 1120 QPSQ/1
The ultra-thin in-house Calibre 1120 QPSQ/1 measures only 4.05mm thick. It has 276 components and 36 jewels, runs at 2.75 Hz and provides 40 hours of power reserve. It is certified with the Hallmark of Geneva, and its openworked oscillating weight is shaped like the Maltese cross.
Why Choose the 4300V/120G-B946
- A skeletonised perpetual calendar, one of the most complex combinations in haute horlogerie
- Only 8.1mm thick in solid 18K white gold
- Geneva Hallmark in-house ultra-thin movement
- White gold bracelet, rubber and leather straps included
FAQ
When was the 4300V/120G-B946 launched?
Vacheron Constantin unveiled the Overseas Perpetual Calendar Ultra-Thin Skeleton in white gold at Watches & Wonders 2021.
How long does the perpetual calendar stay accurate?
Once correctly set, the perpetual calendar accounts for months of different lengths and leap years, and stays accurate until 2100.
How thin is the Overseas Perpetual Calendar Ultra-Thin?
The case measures 41.5mm in diameter and only 8.1mm in thickness. The movement alone is 4.05mm thick.
What is the difference between the 4300V/120G-B946 and the B945?
Both are white gold. The B945 has a blue lacquered dial with three sub-dials, while the B946 is fully skeletonised and shows the calendar on blue rings.
Does this watch come with box and papers?
Please contact us to confirm the full set contents (box, warranty card and papers) for this specific piece.
Can I view this watch in Dubai or by video call?
Yes. Book a private viewing in Dubai through the form below, or contact Prestige Calibers on WhatsApp or by phone at +971585251224 for a live video presentation.
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Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton Men's watch 4300V/120G-B946
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