Vacheron Constantin’s fine watchmaking credentials need little introduction, and this latest addition to its sophisticated Overseas collection – the Overseas Perpetual Calendar Ultra-thin Skeleton – proves once again why the company is at the cutting-edge of haute horology.

The timepiece is powered by the self-winding Calibre 1120 QPSQ, an incredibly thin movement comprising 276 components, and clocking in at just 8.1mm in thickness. Impressively, it offers a moon-phase display alongside a perpetual calendar, one of the most technically demanding complications to make. The latter accounts for the variations of days in the months, meaning that the watch requires no manual adjustments for either the calendar or moon phase indications until March 1 2100.

The movement has been entirely openworked; a painstaking process that allows the components of the watch to be viewed to full effect on the dial. This complex task involves each part being hollowed out, finished and decorated to the highest standard. Here a contemporary, anthracite grey finish has been achieved through the use of an NAC electrolytic treatment, which provides contrast against pink-gold highlights seen across the hour markers and date, date and month counter rings, as well as Vacheron’s signature Maltese cross motif. Several different finishing techniques have been employed, from straight-graining surfaces to give a satin-brushed finish to sunburst effects, circular graining and polishing, each reflecting the light in different and intriguing ways.

The pink-gold watch comes with the option of a matching bracelet featuring satin-brushed half Maltese cross-shaped links. Meanwhile, it can also be easily customised thanks to the user-friendly interchangeable strap system, with further strap options available in blue alligator leather and blue rubber.

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