Ahead of upcoming SIHH watch salon in Geneva in January 2019, Cartier has revived another early 20th-century shaped model that went on to become hugely influential, its 1906 Tonneau, in the new Cartier Privé line. The new collection kicks off with two versions, one a classically elegant two-handed timekeeper, the other a skeletonized dual-time piece.

The bezel is formed from a single block of gold or platinum

Cartier has a long and distinguished history as a watchmaker of dabbling outside the confines of the traditional round watch case, at times with iconic results such as the emblematic Tank and Santos models. Hearkening back to the original 1906 watch — which was cased in platinum rather than more common gold and featured wrist-hugging curves and vis armurier (or “gunsmith”-style) tube screws to fasten the lugs — the Privé case is double bracketed, with an oblong, curved shape engineered to follow the contours of the wrist.

The bezel of the two-hand Tonneau model is formed from a single block of either rose gold or platinum and boasts, according to Cartier, “no overhangs or breaks in the plane” of its surface. The winding crown is topped off with a cabochon in classic Cartier style. The dial — Champagne-colored on the rose-gold watch, silvered on the platinum — features polished, rhodium-plated applied Roman numerals and a vintage-style railtrack minutes scale. Both versions of the Tonneau have alligator leather straps, gray with the platinum, brown with the gold, and are outfitted with Cartier’s new Caliber 1917, a manual-winder with a 38-hour power reserve. The platinum watch is limited to 100 pieces.

The dual time is an update of the Tonneau XL from 2006

The other, more horologically complex version of the Privé is essentially an update of 2006’s Tonneau XL dual time model that hailed from Cartier’s Paris Collection. Like that watch, this one hosts two separate mechanisms to indicate home time and the time in a second time zone, here incorporated into s single movement, Cartier’s Caliber 9919 MC. This movement represents a technical achievement in several respects, with its linear-oriented gear train, with wheels aligned between 5 and 12 o’clock, designed to maintain the integrity of the case shape; the curved contours of the movement itself; and the angled cutting on the gear train’s barrel and escapement wheel.

The linear grain train of the new Caliber 9919 MC

The movement architecture also links the two time zone displays in a way that is meant to be both utilitarian and aesthetically pleasing: a separate unconventionally shaped subdial for each, swept over by Cartier’s familiar blued sword hands, mounted on the skeletonized bridges. Cartier struts its watchmaking stuff with this manually winding caliber, which has been openworked to bring, says Cartier, “lightness and nobility to a traditional complication,” and which allows the wearer to easily set the second time zone in one-hour jumps by pressing the additional crown at 4 o’clock. Fully wound, Caliber 9919 MC (the initials are for “Manufacture Cartier”) amasses a power reserve of 60 hours.

Both the rose gold and platinum versions of the Privé Skeleton Dual Time Zone are offered in limited, numbered editions of 100 pieces, while an additional 20 numbered pieces will be available in baguette-cut diamond-set platinum. Prices for the new collection will be announced at SIHH 2019.