Hamilton

Hamilton Watch Company, founded in Lancaster, Pennsylvania, in 1892, grew from making highly accurate railroad pocket watches to becoming a major American watchmaker known for innovation, supplying the military (WWI/WWII), pioneering aviation timepieces, introducing iconic designs like the Ventura (Elvis's watch), and establishing strong ties with Hollywood films (e.g., Men in Black, Interstellar) before becoming part of Switzerland's Swatch Group, blending American heritage with Swiss quality today.