INTERNATIONAL WATCH CO. REF. 5441 PORTUGUESE 1868-1993 PLATINUM.International Watch Co, Schaffhausen, Portuguese, case No. 171/250, No. 2498337, Ref. 5441..Made in a limited series of 250 examples in 1993 for the 125th anniversary of IWC..Very fine and ra
C. Three-body, polished and brushed, rounded bezel, concave lugs, transparent snap-on case back, band.engraved with 171/250..D. Silver with applied platinum Arabic numerals and dots indexes, subsidiary guillochè dial for the seconds..Platinum feuille hands..M. Cal. 9828, rhodium-plated, fausses cotes decoration, 19 jewels, monometallic balance, straight line lever.escapement, Breguet balance spring, adjusted to five positions, shock absorber, swan-neck regulator.