Hamilton ceased to make US-made watches in 1969. One of the watches introduced in 1968 and made up until the "bitter end" was the Accumatic A-608.
The 10K rolled gold plate case opens through the crystal to provide access to the Swiss-made automatic movement. The hands have open slots to hold luminous material and a textured appearance near the center wheel. The numbers 12, 3, 6 and 9 are faceted, as are the hour markers so this watch really sparkles.
Thanks for visiting my vintage Hamilton watch blog. I like to restore US-made Hamilton wrist watches back to their original glory and share my experiences with other enthusiasts. Use the "Search" space below if you know what model you're looking for. Feel free to leave polite comments or questions in the spaces provided. Also check out my "watches for sale" on my Etsy site - the link is on the right, just below.