This week Vacheron Constantin debuted two new Historiques models based on 1940s archival timepieces that feature a complete calendar (day of the week, month, date), one of which also has a moon phase indicator.

The Historiques Triple Calendar 1942 and Triple Calendar 1948 have a vintage aesthetic and are distinguished by a triple calendar, round case with triple gadroons, two-tone dial, and “claw-type” lugs.

Each case is larger than its predecessor but still ideal by modern standards at 40 mm x 10.35 mm, as you would expect from Vacheron Constantin. The first is crafted in stainless steel and the second in 18K pink gold.

A box-type sapphire crystal protects the dial and blends in with the ultra-thin bezel. Water-resistance is 30 meters, and there is a screw-in sapphire caseback that offers an unobstructed view of the hand-applied Geneva striped bridges and finely chamfered edges of the bridges of manually wound caliber 4400 QC and 4400 QCL (L for Lune, which means moon in French).

Beating at a frequency of 4Hz, each movement features an index regulator balance system (not free sprung), has a useful 65-hour power reserve, thanks to a large barrel.

The Historiques Triple Calendar 1942 is a stainless steel model and has an option for calendar indications that appear in a choice of burgundy or dark blue, on a two-tone silvered dial. The sunburst satin-finished center and the outer zone with Arabic numerals. The retail price is $19,500.

The Historiques 1948 Triple Calendar pink gold model is available with a silvered opaline center dial and a sunburst satin-finished external area. A combination of applied Roman numerals and triangle-type hour-markers, along with slim baton-type hands, creates an elegant appearance as good today as it was in the 1940s. The calendar functions and moon disc come in a choice of burgundy or dark blue. The retail price is $35,000, and each of the two variants is limited to 200 pieces.