IWC Schaffhausen, Portugieser Regulateur, Ref. IW544404, movement no. 2672332, case no. 3202150, sold in 2012 A very fine and attractive, full-set, large, water-resistant, tonneau-shaped, 18K white gold, hand wound wristwatch with regulator-type grey dial, subsidiary dial for the hour at 12 and the constant second at 6, white gold hands, outer railway minute division with concentric radial Arabic numerals, leather strap and an 18K white gold IWC buckle. Fitted with a Cal. 98245, rhodium-plated, three-quarter plate construction, 22 jewels, gold chatons, straight line lever escapement, long index regulator, shock-absorbers, monometallic balance with timing screws, self-compensating Breguet balance spring. Sapphire-set case back secured by six screws, sapphire crystal. Dial, case and movement signed. Diam. 43 mm. Thickness 11.90 mm. Accompanied by a fitted presentation box, soft cloth, user manual for Portugieser Regulator Ref. 5444, guarantee booklet and guarantee card dated January 2012. The IWC Portugieser Regulateur Ref. IW544404 was introduced in 2006. This model is part of IWC's Portugieser collection and features a 43.1 mm white gold case with a grey (ardoise) dial. It is powered by the IWC-manufactured hand-wound mechanical movement caliber 98245, which pays tribute to traditional watchmaking with its regulator-style display—separating the hours, minutes, and seconds into distinct sub-dials.