Automatic K-302
1958–1959 · 10k Solid Yellow Gold · Automatic
About the Automatic K-302
Made from 1958 through 1959, the Automatic K-302 is part of Hamilton's broader Automatic family, a line that brought self-winding convenience to American buyers in a range of dress-oriented cases. This particular model pairs a 10K yellow Gold Filled case with a white dial carrying embossed gold numerals and luminous markers on a pearled track, giving it a clean, finished look typical of late-1950s Hamilton dress automatics. Power comes from the caliber 661, a 17-jewel self-winding movement. Hamilton listed it at $100.00 with bracelet, or $89.50 on strap.
The embossed gold numerals and luminous markers on a pearled track are details worth scrutinizing up close, since decades of use can dull or damage the raised elements on the dial face. The even-numbered layout at 2-4-6-8-10-12 gives the dial a slightly different visual rhythm than a full 12-numeral set, which is part of what makes this reference recognizable once you've seen a few of them.
From the Catalog
Hamilton described the K-302 as featuring yellow embossed numerals with luminous markers on a pearled track, in a 10K yellow gold-filled case with a stainless steel back. At $100.00 on bracelet in 1959, it was positioned as a proper dress automatic at a price that reflected both the gold-filled case and the convenience of self-winding.
Hamilton Catalog Images
1958
1959
What to Look For
| Dial | Look carefully at the embossed gold numerals and markers. Raised dial elements like these are vulnerable to flaking, wear, and amateur refinishing. The luminous material in the markers can also yellow or flake over time. A clean, unrestored dial is the goal. |
| Crystal | The K-302 uses a domed acrylic crystal typical of the era. Check for deep scratches or crazing around the edges. Light surface scratches can often be polished out, but a badly crazed crystal needs replacement. |
| Movement | Ask about service history. The caliber 661 is an automatic, and dried oil creates enough friction to stop it entirely on examples that haven't been serviced in years. A watch that runs but doesn't wind automatically, or stops without warning, is a sign the movement needs attention. |
| Case | The case is 10K yellow gold-filled, so check the high-wear points like lugs and case sides for gold layer wear-through. Swept lugs tend to hold up well, but harsh polishing over the years can soften the original lines. Inspect the case back for pry marks, which are common when someone unfamiliar with the movement tried to open it from the wrong side. |
| Crown | Check that the crown threads in smoothly and seats properly. Though the watch was listed as waterproof originally, no vintage watch should be treated as water-resistant today. A crown that feels loose or gritty is worth addressing before any moisture gets near the movement. |
The Movement
The caliber 661 is a 17-jewel automatic made by Hamilton during the late 1950s. It winds itself through a rotating oscillating weight that captures energy from natural wrist motion, so the watch keeps itself running without manual winding under normal daily wear. It's a solid, serviceable movement, though like any automatic of this age it benefits from a proper cleaning and fresh lubrication to stay reliable.