IWC REF 3531 PORTUGUESE AUTOMATIC STEEL IWC (International Watch Co.), Schaffhausen, "Portuguese", Ref. 3531. Made in the 1990s. Fine, self-winding, water-resistant, stainless steel gentleman's wristwatch with a stainless steel IWC buckle. | Important Modern & Vintage Timepieces | Geneva, May 15, 2016
IWC REF 3531 PORTUGUESE AUTOMATIC STEEL IWC (International Watch Co.), Schaffhausen, "Portuguese", Ref. 3531. Made in the 1990s. Fine, self-winding, water-resistant, stainless steel gentleman's wristwatch with a stainless steel IWC buckle., Three-body, polished and brushed, concave lugs, transparent case back, sapphire crystals. Matte silver with applied pink gold Arabic numerals, subsidiary seconds dial. Pink gold "feuille" hands. Cal. 891/2, rhodiumplated, "fausses côtes" decoration, 36 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating flat balance-spring.
