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Vacheron Constantin

The Saltarello Prototype

 

Coming to auction next November (Phillips "Decade One 2015-2025", November 8, 2025) is this very unique timepiece: the Vacheron Constantin Saltarello Prototype.

The development for the Saltarello ref. 43041, combining a jump hour complication with retrograde minutes, started in 1994 with the present prototype being finalised in 1995/1996

Its movement, based on the ultra-thin automatic caliber 1120/2, features a jump hour mechanism with a “brake system” based on a minute repeater gong to cushion the return of the minutes hand

This "brake system", visible through an aperture on the dial, was abandoned on the production pieces, making this prototype very unique.



The hand guilloché dial is also quite different from the regular production pieces as the applied gold numerals and markers and even the logo have hand polished rounded tops whereas regular production pieces were flat.





A regular production example, for comparison.



The prototype was first cased in a gold plated case engraved Test N°1 on the caseback and between the lugs. 

In 2000 Vacheron Constantin made an 18k yellow gold case specially for the watch engraved Pièce Unique.





Another difference with the regular production examples is the fact that the rotor, and not only the winding mass, is in colored gold.



Below: a regular production example, for comparison.


credit: Phillips, @watchesbylogan (3) & Sotheby's (last photo only)


The Saltarello prototype has been consigned directly by the watchmaker who developed the Saltarello for Vacheron Constantin.

The Saltarello was officially launched in 1998 and made in 100 pieces in yellow gold and 200 pieces in pink and white gold each.

Thanks for reading.

Best, Emmanuel

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