**Hamilton Grade 940 – 21-Jewel Railroad Pocket Watch Movement, circa 1905** An impressive antique Hamilton Watch Company Grade 940 pocket watch movement, manufactured in Lancaster, Pennsylvania, USA, circa 1905. !!! The watch does run but it tends to stop when put down flat. As such, it's sold as is !!! This high-grade, 18-size, 21-jewel movement features ruby jewels in screw-set settings, a beautifully damaskeened nickel finish with gilt accents, and a traditional full-plate construction. Designed to meet demanding railroad timekeeping standards, the Grade 940 is a Class A railroad-grade movement, adjusted to five positions, temperature and isochronism for enhanced accuracy and reliability. Additional features include a lever-setting mechanism, Breguet hairspring and Goldthwait regulator, reflecting Hamilton’s renowned commitment to precision engineering and quality craftsmanship at the beginning of the 20th century. The movement bears serial number 454845 and represents an excellent collectible example of American horological history. !!! The watch does run but it tends to stop when put down flat. As such, it's sold as is !!! Specifications - Manufacturer: Hamilton Watch Company - Grade: 940, Class A railroad grade - **Estimated production year: 1905 - Serial number: 454845 - Size: 18s - Jewels: 21 ruby jewels, screw-set - Movement finish:** Nickel, damaskeened with gilt accents - Setting: Lever-set - Adjustments: Five positions, temperature and isochronism - Hairspring: Breguet - Regulator: Goldthwait - Configuration: Open-face movement A desirable collector’s piece for enthusiasts of vintage American pocket watches, railroad-grade timepieces and fine mechanical watchmaking. *Please note: The condition, running status, completeness and any accompanying case or dial should be assessed from the actual item and photographs.* Source: https://pocketwatchdatabase.com/search/result/hamilton/454845