The Harmony Tourbillon Chronograph

From Vacheron Constantin -

Courtesy of Vacheron Constantin

Just on the off-chance that you were not aware, 2016 is a special year for Vacheron Constantin.  260 years is no small measure of time, and the folks at Vacheron are putting forth some interesting offerings to celebrate.  This is one of the new pieces from the Harmony collection.  Per the press release, this one is destined only for Vacheron Constantin's boutiques.

Reference 

5100S/000R-B125
Hallmark of Geneva certified timepiece
Only available in Vacheron Constantin Boutiques 

Calibre

3200
Developed and manufactured by Vacheron Constantin Mechanical, manual-winding
32.8 mm (14’’’ 1⁄2) diameter
6.7 mm thick
Approximately 65 hours of power reserve
2.5 Hz (18,000 vibrations/hour)
292 components

39 jewels

Indications

Hours, minutes
Small seconds on tourbillon carriage (anthracite-colored screw) Tourbillon

Monopusher chronograph (45-minute counter at 3 o’clock) Power reserve 

Case

18K 5N pink gold
42 x 52 mm, 12.81 mm thick
Transparent sapphire crystal caseback

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

Dial

Mellow silvered opaline

Anthracite-colored painted Arabic numerals and minute-track 

Strap
Dark brown Mississippiensis alligator leather, hand-stitched, 
saddle- finish, large square scales 

Clasp
18K 5N pink gold folding clasp Polished half Maltese cross-shaped