Offered here is an exceptional and elegant timepiece from one of Switzerland's most revered manufacturers: an International Watch Company (IWC) Reference 89, crafted in 1958. This watch represents the pinnacle of mid-century dress watch design, housing the legendary and robust IWC Calibre 89 manual winding movement within a distinguished 18-karat solid gold case. Year of Production: 1958 (confirmed by serial number). Reference & Model: IWC 89, the iconic dress watch of the era. Movement: Renowned IWC-manufactured Calibre 89, manual wind. Case: 18-karat solid gold, with elegant slender lugs. Condition: Remarkably well-preserved for its age, with an honest patina. Serial Number: 1527966 (internally engraved, matching 1958 production). The watch features a 36mm 18-karat solid gold case, a perfect and timeless size that wears elegantly on any wrist. The case exhibits the classic, refined design language of IWC's post-war period with elegant, slender lugs. It shows gentle signs of wear consistent with its age and careful use, which have only added to its warm, vintage character. The case back is solid, securely protecting the movement inside, and bears the internal engraving of the serial number 1527966.