Vacheron Constantin Traditionnelle Perpetual Calendar Openworked (43172/000P-9236)

Information

• Brand:Vacheron Constantin
• Series:Traditionnelle
• Model:43172/000P-9236

Dial

• Dial Color:Skeleton
• Dial Indexes:Stick / Dot
• Dial Hands:Stick

Movement

• MBrand:Vacheron Constantin
• Caliber:1120 QP SQ
• Base:Vacheron Constantin 1120
• Display:Analog
• Diameter:29.60 mm
• Jewels:36
• Reserve:40 h
• Frequency:19800 bph
• Time:Hours, Minutes
• Date:Day, Leap Year, Month, Perpetual Calendar
• Astronomical:Moonphase
• Additionals:Skeleton
• This hand-wound movement bearing the Hallmark of Geneva is equipped with an oscillating weight featuring the particularly meticulous finishing that is the signature of fine watchmaking. Beating at a frequency of 2.75 Hz (19,800 vibrations per hour), it has an approximately 40-hour power reserve. Calibre 1120 QP SQ drives indications of the hours, minutes and perpetual calendar featuring the day of the week in a subdial at 9 o’clock, the date in a subdial at 3 o’clock, the month and leap year on a 48-month subdial at 12 o’clock, and the moon phase at 6 o’clock. It is hand-skeletonized.

Case

• Case Material:Platinum
• Case Glass:Sapphire
• Case Back:Open
• Case Shape:Round
• Case Diameter:39.00 mm
• Case Height:8.82 mm
• W/R:30.00 m

Only by bringing several traditional watch crafts together could such a work of art be created. Using transparency and shimmering light to transform a complicated watch movement into an aerial ballet of pierced bridges and gear-trains is an art that Vacheron Constantin has mastered to perfection, an art requiring complementary expertise: that of the master watchmaker to create the complication, that of the master engraver to reveal the soul of the movement.

The Patrimony Traditionnelle Skeleton Perpetual Calendar watch, whose 1120QPSQ calibre is stamped with the prestigious Geneva hallmark, is distinguished by the Art Nouveau motif of its beautifully finished engraving. Vacheron Constantin’s master engravers were inspired here by the natural motifs and elegant shapes of the Eiffel Tower. Another distinguishing feature of the movement is the complexity of its decoration and the sophistication of its execution, making it a major new benchmark in the world of skeleton watches.

The dial was designed to provide an excellent view of the skeleton movement and perfect legibility of the perpetual calendar indications. To achieve this, Vacheron Constantin opted for a transparent sapphire dial enhanced by a silvered ring integrating the hour markers and minute-track. The Perpetual Calendar indications, transferred on the dial, consequently gained in both size and legibility. Transparency was also used with the moon phase indicator, whose two discs can be made out through the frosted glass.

Ref. 43172/000P-9236 has a platinum case.