Circa 1956-1960.
Here is a vintage Hamilton Automatic K-576 calendar watch in a stainless steel case with white embossed numerals and luminous markers and dots on a sterling silver dial. Powering this watch is a genuine Hamilton caliber 662 automatic movement with 17 jewels that runs strong and kept good time over a 24 hour period. The case measures approximately 32mm wide x 37mm in overall length. The inside back case reads: Hamilton W. Co., Lancaster, PA, Stainless Steel, R915363, Star W.C. Co.
Here is a vintage Hamilton Automatic K-576 calendar watch in a stainless steel case with white embossed numerals and luminous markers and dots on a sterling silver dial. Powering this watch is a genuine Hamilton caliber 662 automatic movement with 17 jewels that runs strong and kept good time over a 24 hour period. The case measures approximately 32mm wide x 37mm in overall length. The inside back case reads: Hamilton W. Co., Lancaster, PA, Stainless Steel, R915363, Star W.C. Co.