Product Details

The Hamilton Automatic K-407 is one of the early Hamilton automatic models from the mid-1950s. It was introduced in 1956 and produced for about 1956–1957 only. One of the first automatic movements from Hamilton. Sold 18K Gold hour markers Movement Details (Caliber 661)During the 1950s, Hamilton Watch began incorporating Swiss-made movements to complement their American engineering. The Caliber 661 featured in this watch was manufactured in partnership with Swiss maker Certina Kurth Freres (as the Certina caliber 28.45). It operates at 18,000 vibrations per hour. Runs well.