The L.U.C Calibre 98.01-L (L.U.C 1.98) is the first hand-wound movement to feature four barrels, each of which contains a 47 cm-long mainspring. The sum of their lengths is a lavish 1.88 meters, which enables this calibre to store sufficient energy for 216 hours of uninterrupted running. This outstanding autonomy is displayed by a large power-reserve indicator on the dial. The additional two days of unused power reserve provide a comfortable margin and enhance the stability of the complex mechanism's rate. A subdial features a well legible circular date display and additionally indicates the small seconds.