L.U.C Calibre 98.01-L is the worlds first hand-wound movement comprising four barrels composed of two sets of coupled or stacked barrels, each containing a spring measuring 47 cm long. The total sum of their lengths amounts to 1.88 metres, thus enabling them to store sufficient energy to power this calibre for 216 hours, equivalent to around 9 days. This exceptional autonomy is displayed on the dial by a power-reserve indicator at 12 oclock. Another distinctive feature of this calibre lies in its concentric display of the date and small seconds in a subdial at 6 oclock. The entirely hand-crafted finishing of this movement meets the demanding craftsmanship standards of the Poinçon de Genève quality hallmark.