Two portholes, two movements: Louis Erard and Vianney Halter revisit the “Antiqua”
For their third collaboration, Louis Erard and Vianney Halter draw on Halter’s 1998 Antiqua. Hours and seconds run in two portholes – each driven by its own movement.

Symbolic image · Photo: Pittigrilli / Wikimedia Commons, CC BY-SA 4.0 (cropped and resized)
Swiss brand Louis Erard and independent watchmaker Vianney Halter have unveiled their third joint watch, the “Futur Antérieur”. It is modelled on Halter’s Antiqua perpetual calendar, shown as a prototype in Basel in 1998, whose riveted portholes evoke steampunk, Monochrome Watches reported. Their two earlier collaborations, from 2020 and 2024, were regulator watches.
The new steel case measures 38 millimetres across and 8.85 millimetres high, according to Monochrome; hours and minutes and the seconds sit in two diagonally offset, riveted portholes. Each display has its own Sellita automatic movement, and according to Deployant the two are not mechanically linked. There is a gold-toned and a silver version, 178 pieces each, plus 78 sets containing both.
Reviewers praise the design but are partly critical of the two-movement solution. Worn & Wound calls it “fake, in its way”, since one movement only drives a seconds hand. Revolution writes that two movements in one watch are not usually the most desirable solution, but forgivable here given the beauty of the case and dials.
