55.00 mm case diameter, white dial, black Roman numerals with outer chapter ring calibrated for minutes, subdial for seconds with moon phase at 6 o'clock, subdial for date at 12 o'clock, central apertures for day and month in French, stem wound lever set jeweled gilt movement with repeater function, engine turned and foliate engraved case with blank cartouche.
Inner case back stamp: SWISS 5.
Gross weight: 108.25 dwt.