This Portugieser Classic houses the In-House Caliber 89361 which features a flyback function and an impressive 68-hour power reserve. Previously Portugieser Chronographs were powered by Valjoux-based movements.
Founded in 1868 by American engineer Florentine Ariosto Jones, the International Watch Company (IWC) was established in Schaffhausen, Switzerland, strategically utilizing hydropower from the Rhine River to merge American industrialized manufacturing scale with Swiss horological labor.
Operating geographically apart from the decorative watchmaking hubs of Geneva, IWC cultivated a strict, engineering-driven identity focused on functional, robust, and highly legible tool watches. This utilitarian ethos is heavily anchored by their historic Pilot's Watches, notably the Big Pilot and Mark series, which integrated soft-iron inner cases to shield calibers from aviation-induced magnetic fields.
Overall Grade: 8.5 / 10 | Great Condition, Visible Wear Production: 2019 Contents: Box and Paper Genre: Dress Watch
Size: 42mm Thickness: approx. 14mm Lug Width: approx. 22mm
Case: Stainless steel, mirrored and brushed surfaces, light visible wear Bezel: Stainless steel, domed bezel, mirrored finish, light visible wear Dial: Silvered dial, blued Arabic numerals, railway chapter ring, blued counters Hands: Blued steel, leaf hands
Crown: Stainless steel, push/pull crown, light visible wear Crystal: Sapphire crystal, A/R coated, light visible wear Bracelet: Black leather strap, light visible wear Caseback: Transparent sapphire crystal, light visible wear Movement: Automatic Caliber: Calibre 893610, Automatic, Flyback Chrono