Automatic K-460
1960 · 10k Yellow Gold Filled / Stainless Steel · Automatic
About the Automatic K-460
Made only in 1960, the Automatic K-460 is a clean, round automatic from Hamilton's broader Automatic family, running on the caliber 667 with 17 jewels. The dial pairs embossed gold numerals at 6 and 12 with luminous markers and a pearled track, giving it a dressy but legible character. The case is 10K yellow Gold Filled with a stainless steel back, and a sweep seconds hand keeps things uncluttered on the dial. It appeared in that single catalog year at $100 on bracelet or $89.50 on strap.
Finding one in good shape means paying close attention to the dial, the embossed gold numerals and luminous markers can show age in different ways, and any cracking or flaking on the lume is worth evaluating carefully before buying. The pearled track detail is a nice period touch that shows up well when the dial is clean and undamaged. The "Weatherproof" rating on the original listing is a period designation, not a modern water resistance claim, so treat this one accordingly.
From the Catalog
Hamilton described the K-460 as having a weatherproof case with yellow embossed numerals, luminous markers, and a pearled track, pricing it at $100 on bracelet in 1960, which put it in the mid-range of Hamilton's automatic lineup for that year.
Hamilton Catalog Images
1960
What to Look For
| Dial | Look hard at the embossed gold numerals and markers, they should sit cleanly with no separation from the dial or loss of finish. The luminous material in the markers ages and can crack or discolor; check for consistency across all markers rather than assuming one damaged spot means the rest are fine. The pearled track around the chapter ring is a small detail that shows up clearly under good light, so take a close look at whether it's intact. |
| Crystal | This will have an acrylic crystal. Light scratches are normal and can be polished out, but deep gouges or crazing mean replacement. Check for good seating with no gaps around the edge. |
| Movement | The caliber 667 is an automatic and should wind from wrist motion without needing manual winding. That said, dried lubricants generate enough friction to stop even a well-made movement, and a watch this age running on original oils is overdue for a service. Also worth knowing: the 667's train bridge requires three wheels to be aligned simultaneously during reassembly, which makes it a movement that rewards careful, experienced hands. |
| Case | 10K yellow gold-filled over a stainless steel back. Check the high-wear areas on the lugs and case sides for gold-fill wear-through, which appears as brassing or a silver-toned base showing through. Some wear is expected on a 60-year-old watch; heavy wear-through affects both appearance and value. The case back can be tricky to open without the right tools, so any signs of prying damage around the edge are a red flag. |
| Crown | The 667 is automatic, so the crown mostly handles time-setting rather than daily winding. Check that it screws or seats properly and that it hasn't been replaced with an ill-fitting aftermarket part. One practical note: this movement is genuinely tricky to wind by hand since the crown geometry only gives clean access from one side. |
The Movement
The caliber 667 is a 17-jewel automatic made by Hamilton, designed to wind itself from the natural motion of the wrist via a bidirectional rotor. It's a reliable workhorse of the period but has one known quirk for watchmakers: reassembling the train bridge requires getting three wheels to drop into place simultaneously, which takes patience. A properly serviced 667 keeps solid time and will run for years without needing attention.