IWC fine 18k yellow gold ladies wristwatch

IWC fine 18k yellow gold ladies wristwatch, manual winding, Switzerland around 1966, two- piece construction case, snap on case back, silver coloured dial with applied indices, display of hours & minutes, rhodium plated lever movement, calibre 431, 17 jewels, incablock shock-absorber, fausses cotes decoration, breadth approx. 14 mm, length approx. 17 cm, total weight approx. 48g, condition 2, from the estate of a collector