The Traditionnelle Chronograph Perpetual Calendar

From Vacheron Constantin -

Courtesy of Vacheron Constantin

43 mm of platinum goodness, here are the pertinents -

Courtesy of Vacheron Constantin

Reference

5000T/000P-B048
Hallmark of Geneva certified timepiece

Caliber

1142 QP

Developed and manufactured by Vacheron Constantin Mechanical, manual-winding
27.5 mm (12’’’) diameter, 7.37 mm thick Approximately 48 hours of power reserve
3 Hz (21,600 vibrations/hour)
324 components
21 jewels

Indications

Hours, minutes, small seconds at 9 o’clock
Perpetual calendar (day of the week, date, month, leap year indication
Moon phase
Column-wheel chronograph (30-minute counter) at 3 o’clock

Case

950 platinum
43 mm diameter, 12.94 mm thick
Transparent sapphire crystal caseback

Water-resistance tested at a pressure of 3 bar (approx. 30 meters)

Dial

Slate-coloured, opaline, 22K white gold moon disc White painted tachymeter scale

18K white gold hour-markers

Strap

Black Mississippiensis alligator leather with alligator inner shell, hand-stitched, saddle-finish, large square scales

Clasp

950 platinum folding clasp Polished half Maltese cross-shaped

Presentation box

With watch winder