DuBois chronograph with complete calendar, Switzerland around 1990, self winding, gold plated case with snap on stainless steel case-back, white dial, raised gilded indices, sub-dials for moon phase, 24-hour-display, minutes- & hour-counter as well as windows for day & month, central date, gold plated movement calibre ETA 7751, 17 jewels, precision adjustment, diameter approx. 36 mm, condition 2