Accumatic A-658
1972 ยท 14k Gold Electroplate / Stainless Steel
About the Accumatic A-658
Made only in 1972, the Accumatic A-658 is a round-cased automatic from the later Accumatic family, running on Hamilton's caliber 689A. The case is 14k Gold Electroplate over a stainless steel back, a construction common to Hamilton's more affordable dress pieces of that era. The brown dial with applied indices gives it a warm, understated character that reads well on the wrist without trying too hard.
Brown dials from this period are prone to fading or developing uneven tone if they've been exposed to moisture or UV light over the years, so condition varies more than you'd expect. The integrated lugs are a detail worth appreciating up close, and on a good example they add a subtle architectural quality to an otherwise simple round case. Finding one with an intact, evenly colored dial and original crown is the goal.
From the Catalog
Hamilton offered the A-658 in 1972 at $110.00 with a strap or $119.95 on a bracelet, positioning it as an accessible automatic dress watch with a brown dial in a gold electroplate case.
Hamilton Catalog Images
1972
1973
1974
What to Look For
| Dial | Brown dials from this era can fade unevenly or show moisture damage near the edges. Look for consistent color across the full surface. The applied indices should sit flat and flush, with no separation or tarnishing around the bases. Avoid any example where the dial surface looks hazy or where printing appears rubbed, as the lacquer over the dial means any attempt to clean it will pull the printing right off. |
| Crystal | Check for deep scratches or chips, especially around the edges where the crystal meets the bezel. A replacement crystal is serviceable but should be period-appropriate in profile. |
| Movement | Ask about service history. Dried oil in the caliber 689A creates enough friction to stop the watch even when it appears to wind and set normally. A watch that runs but loses significant time or stops overnight almost certainly needs a full service. |
| Case | Gold electroplate wears through at the high points over time, particularly on the lugs and bezel edge. The integrated lug design on this model can trap grime in the recesses, which is fine cosmetically but worth noting. Check the stainless steel back for dents, deep scratches, or signs that it's been pried open with a blade rather than properly opened. Case backs on watches like this can be stubborn, and improper opening leaves marks. |
| Crown | Confirm the crown is original and threads or pulls smoothly through its positions without slipping. A loose or replaced crown can signal past moisture ingress, and this watch should be treated as not water-resistant regardless of its original rating. |
The Movement
The caliber 689A is a 17-jewel automatic movement that winds via a bidirectional rotor, meaning normal wrist motion keeps it running without any manual winding under typical wearing conditions. It's a reliable workhorse from Hamilton's late domestic production period, compact enough for the dress watch cases it was paired with. Not the most elaborate movement Hamilton made, but honest and well-suited to everyday wear when properly serviced.