The name comes from its modular construction, which is designed to accommodate different movement calibres. The black steel body that houses the movement is distinct from the brushed steel outer case and attached with two screws on either side. Powering the watch is the reputable La Joux-Perret Automatic G101, with blued screws and Geneva stripes visible through the exhibition caseback. The 39mm case sits comfortably on most wrists, due to its premium machined sapphire box-crystal, pronounced crown, and thickness of just 9.7mm.