Modelled on a 1928 pulsometer chronograph and made to mark Vacheron Constantin‘s 260th anniversary, the Harmony collection of SIHH 2015 comprises six different models, each a limited edition. The median priced timepiece in the anniversary range is the Harmony Chronograph, a one-button, hand-wound chronograph with a traditionally styled movement as well as an unusual 45 minute counter.

Cushion-shaped with a 42 mm diameter, the Harmony Chronograph is powered the calibre 3300, a newly developed chronograph movement with traditional architecture and aesthetics. It is hand-wound, with a lateral coupling system and column wheel, the twin features found on old school, high-end chronographs.

And the balance cock is decorated with a relief fleurisanne engraving, echoing a motif from a pocket watch signed Jean-Marc Vacheron dating to 1755, the oldest pocket watch owned by Vacheron Constantin.

The dial is silvered with a pulsometric scale, just like the 1928 wristwatch that provided the template for the Harmony line. Notably, the movement features a 45 minute counter, while most chronographs count up to 30 minutes.

The Harmony Chronograph is limited to 260 pieces in pink gold, with a retail price of 105,600 Singapore dollars, including 7% tax. At current rates that’s equivalent to US$84,500.