2021 marks a new frontier in the collaboration between Louis Erard and Alain Silberstein, with the launch of the triptych. Three watches as work of art; three family members able to shed new light on Alain Silberstein's artistic approach, as well as Louis Erard's watchmaking mastery. Each item is limited to 178 models, 78 of which are to be sold in a collector's box containing the entire capsule as well as a digital artwork signed by the artist. The triptych brings together three different timepieces – three signature models, each with its own unique features: La Semaine, Le Régulateur II, and Le Chrono Monopoussoir. Everything begins with the case, a blank canvas for the artist. It consists of a frame with vertical sidebars called “brancards”, flanked by a conical crown. This is architecture in pure form, each element perfectly held, resulting in geometric simplicity and effects created by contrasts, shapes, materials (grade 2 and grade 5 titanium) and finishes (microblasted and polished).