Patek Philippe Nautilus 3900/1

PATEK PHILIPPE medium wristwatch series Nautilus reference 3900/1, 2 piece construction, lateral 4-times screwed down case in stainless steel/gold combined including bracelet with deployant clasp, gilt, horizontal striped Sigma dial with raised gold-hour-signs, quartz, display of hours, minutes, sweep seconds and date, sapphire crystal, calibre E 23 SC, measures approx. 35 x 33 mm, length approx. 16,5 cm, signs of use due to age, original certificate, sold in December 1985, condition 2-3, property of a collector