NUMA JEANNIN gents wristwatch with chronograph, Switzerland around 1990, reference 7758.003.40, self winding, limited edition of 300 pieces according to case back engraving, gold-plated case, snap on stainless steel case back, white dial with gilded hour-indexes, gilded hands, tachometer graduation, date & moon phase, calibre Valjoux 7758, 17 jewels, precision adjustment, diameter approx. 37 mm, signs of use, gilding partial missing, condition movement 2-3, condition case 3