This movement is composed of a round, 11½-ligne calibre, with a case-fitting diameter of 25.60mm and a height of 4.35mm, self-winding, mechanical lever movement with ball-bearing and 27 jewels. Its sprung balance generates 28,800 vibrations per hour (4Hz), and is fitted with an integrated automatic mechanism, enhanced with an Etachron regulator system, date corrector and a fine-timing device.
Its functions include hand-displayed hours, minutes and seconds (small sweep at 6 o’clock), with date window at 3 o’clock, and a power reserve of 42 hours.
Settings and adjustments are achieved by manipulating the three positions of the winding stem. Position 1 controls normal running and manual winding; position 2 allows quick date correction; position 3 enables time setting with stop seconds control.
This calibre is embellished by a number of attractive decorations, which can be seen through a transparent case back, including diamond-polished barrel, train and wheel bridges, with snailed undercuts and diamond-polished bevels; a paper-grained automatic bridge with snailed undercut and diamond-polished bevel, and Côtes de Genève finish on its oscillating weight.
