Antiquorum Auctioneers Lot soldUSD 0USD 0 (NET)CHF 0 (listed)CHF 0 (NET)EstimatePrice on Request See all lots IWC Ref. 3712 Antiquorum - Important Modern & Vintage Timepieces Geneva 2016 | Geneva, 13 November Summary Movement Automatic Year of manufacture 1970 Lot number 91 Diameter 41mm Location Description IWC REF. 3712 PORTUGUESE SPLIT-SECONDS CHRONO STEEL International Watch Co. Schaffhausen, "Portuguese, Chronographe Rattrapante," case No. 2697928, Ref. 3712. Made circa 2004. Very fine, large, stainless steel wristwatch with round button split-seconds chronograph, register and a stainless steel IWC buckle. Three-body, polished and brushed, overhanging bezel, concave lugs, case back secured with 4 screws, sapphire crystal. Matte silver with applied pink gold Arabic numerals, outer dot minute track and 1/5th seconds track with 5-second Arabic markers, subsidiary seconds and 30-minute register dials. Pink gold feuille hands. Cal. C76240, gilt brass, oeil-de-perdrix decoration, 27 jewels, straight- line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, hack mechanism.