The Geneva-based manufacture makes a big splash at the SIHH 2015 launching a new collection called Harmony. In addition, the brand presented a duo whose calibers parts are manually engraved. The Harmony line introduces a new cushion-shape case. Such shapes are a real challenge in terms of design as the round shape of the movementmust fit harmoniously into a softened square ("cushion" as the angles are not sharps). The result involved a new digital visualization know-how to reproduce and enhance the reflections of light. This year is a milestone for Vacheron Constantin for the brand introduces 3 new chronographs conceived and manufactured in-house. A fourth chronograph for women was also integrated. The above models are all present in the new Harmony collection, which includes second time zones models for men and women. Actually , all Harmony pieces are a limited edition due to this important launch that celebrates the 260th anniversary of Vacheron Constantin. Finally, the two mechanical Métier d'art pieces integrated calibers are directly engraved. Effectively, every component is decorated one by one, with a lot of care to avoid any distorsion that could impact its function.