Historic Perseo "Trifase" pocket watch, famous for having been the official supplier to the Italian State Railways. This specific example dates approximately to the 1970s or 1980s. Museum-quality NOS (New Old Stock) condition: the watch has never been used and is an intact vintage piece. It still features the original Perseo red wax seal attached to the loop, the two-tone cord, and the original “Perseo Grand Prix” metal tag. Dial: Perfect white enamel, with no flaking or cracks. Black Roman numerals for the 12-hour markers and an outer scale for the afternoon hours (13–24) in bright red, typical of railway-style designs. Case: High-strength metal (classic railway specification), with a polished and satin-finished back, completely free of scratches or tarnish. Movement: Swiss-made mechanical hand-wound movement. A piece of Italian history that is virtually impossible to find in this condition, perfect for collectors of railroad or vintage timepieces. From a private collection. I currently have other pieces from the same collection for sale in like-new condition (gold items from my inventory). I’m open to combined purchase offers.