For most of us, the first things that come up to mind when thinking of Jaeger-LeCoultre are slim, time only watches with a timeless design. Jaeger-LeCoultre is not only a master of complicated watches but a brand that helped forge the horological world as we know it today, thanks to the development from the ground up of some of the most amazing movements and ebauches powering not only their own watches but also watches from the holy trinity of watchmaking —Vacheron Constantin, Audemars Piguet and Patek Philippe—, as it happened with the development of the JLC calibre 920 which gave birth to the AP 2121, the VC 1121 and the Patek 28-255.