Accumatic A-602
1964 · 10k Rolled Gold Plate · Automatic
About the Accumatic A-602
Made only in 1964, the Accumatic A-602 is part of Hamilton's Accumatic family of automatic wristwatches and runs on the caliber 689, a 17-jewel automatic movement. The case is 10K yellow Rolled Gold Plate with a round profile and swept lugs, giving it a clean, dressy character for its era. The dial is one of the more visually layered in the Accumatic lineup, with a two-tone finish, a parchment-colored field, a two-part silver chapter ring, and applied gold markers arranged without Arabic numerals or indices at the hour positions. A sweep seconds hand completes the look.
Finding an A-602 in good condition means paying close attention to that dial, because the two-tone, multi-part construction leaves more surface area for age and wear to show up. Known variants include a three-tone version, so it's worth comparing what you have against original references before assuming condition issues are damage rather than intentional design. The applied gold markers are a detail that tends to hold up well, but check for any separation or displacement, since even a small shift changes the whole balance of the dial.
From the Catalog
Hamilton listed the A-602 in 1964 at $79.50 with bracelet or $69.50 on a strap, describing it simply by its case material and configuration. The pricing put it in the accessible mid-range of the Accumatic lineup, a practical automatic dress watch at a reasonable entry point for the time.
Hamilton Catalog Images
1964
What to Look For
| Dial | The two-tone dial with its parchment field and two-part silver chapter ring is the heart of this watch's appeal. Look carefully for separation between the dial layers, fading at the boundary between zones, and any detachment or shifting of the applied gold markers. The lacquer on dials like this is fragile and cannot be cleaned without damaging the surface, so what you see is what you get. |
| Crystal | Check for deep scratches, chips at the edge, or a poor fit that suggests the crystal has been replaced with a non-original size. A hazy or yellowed crystal on an otherwise clean watch is usually a straightforward fix. |
| Movement | The caliber 689 is an automatic. After 60 years, dried lubricants are a real concern, and even a small amount of friction buildup is enough to stop the movement entirely. A watch that only runs when hand-wound or shaken is telling you the rotor isn't doing its job, which usually points to a service that's overdue. |
| Case | The 10K yellow RGP case wears through to the base metal over time, particularly at the lugs and back edges. Look at the lug tips and case flanks under good light. Some honest wear is expected, but heavy brassing changes the look significantly on a watch this refined. |
| Crown | Pull the crown gently and confirm it moves between positions without slipping or feeling loose. On single-piece cases like this, removing the movement requires pulling the stem, and a worn or damaged crown can complicate that process considerably. |
The Movement
The caliber 689 is a 17-jewel automatic made by Hamilton during the American production era. It winds from wrist motion through a bidirectional rotor and runs a sweep seconds hand off the center of the dial. It's a straightforward, reliable movement when properly serviced, and parts availability is generally reasonable for a watch of this vintage.