Accumatic A-509
1968–1969 · Stainless Steel · Automatic
About the Accumatic A-509
Made from 1968 through 1969, the Accumatic A-509 is a clean, round stainless steel automatic from the tail end of Hamilton's domestic Accumatic lineup. It runs on the caliber 694A, a 17-jewel automatic movement, and presents a silver dial with embossed silver numerals and markers at the 6 and 12 positions. The Accumatic family was Hamilton's long-running line of automatic dress watches, and the A-509 represents one of its later domestic entries before Hamilton's production shifted decisively overseas.
Embossed silver-on-silver dials can be subtle to the point of nearly disappearing in low light, which is part of the appeal but also means condition matters more than usual here. Dial integrity is the first thing to assess, since any separation or damage to the embossed numerals is difficult or impossible to reverse cleanly. Finding one with the original bracelet or a period-correct strap adds to the picture, but the dial and case are what make or break this one.
From the Catalog
Hamilton listed the A-509 in 1968 at $79.50 in stainless steel, positioning it as an accessible automatic in the Accumatic range. The catalog described it with a silver dial and silver applied markers, keeping the presentation clean and consistent with Hamilton's dress-casual aesthetic of the period.
Hamilton Catalog Images
1968
What to Look For
| Dial | Look closely at the embossed silver numerals and markers. Because the contrast between the markers and the silver dial is intentionally low, any discoloration, separation, or damage to the embossed elements will be immediately noticeable under good light. Check for spotting or moisture damage that can sometimes read as a uniform haze on silver dials. |
| Crystal | Check for deep scratches or chips around the edges. Replacement crystals for this case profile exist, but fitting them correctly takes care, and an ill-fitting crystal is worse than a scratched original. |
| Movement | The 694A is an automatic and should wind from wrist motion, keeping the watch running without any manual intervention. Dried lubricants are a genuine concern after more than 50 years. If the watch only runs when shaken or stops unexpectedly within a day, that is a strong sign it needs a full service before regular wear. |
| Case | Stainless steel cases from this era wear well, but check the lugs for thinning from over-polishing. The original brushed or finished surfaces should still show some definition. Case backs can be stubborn on watches this age, so if the back looks like someone has tried to pry it open, inspect the seating edge for damage. |
| Crown | The crown should pull out with smooth, distinct detents and push back in firmly. A crown that spins loosely or has no resistance may indicate a worn stem or stripped threads, which adds to service complexity. |
The Movement
The caliber 694A is a 17-jewel automatic movement from Hamilton's American production era. It winds from the motion of the wearer's wrist through a rotor mechanism and runs without any need for manual winding under normal daily wear. It is a straightforward and serviceable automatic, though like all movements of this age it benefits from a full cleaning and oiling to perform reliably.