IWC rare, early 18k yellow gold ladies wristwatch

IWC rare, early 18k yellow gold ladies wristwatch, manual winding, Switzerland around 1962, all side fine engraved hinge case, silvered dial with Arabic hours restored, blued steel hands, display of hours & minutes, rhodium plated 'first' IWC lever movement calibre 92, 17 jewels, bimetallic screw- balance, Breguet balance-spring, 3 pressed chatons, fausses cotes decoration, measures approx. 14 x 25 mm, needs to be overhauled, condition 2-3, from the estate of a collector