Dateline A-588
1969–1970 · Stainless Steel · Automatic
About the Dateline A-588
Made in 1969 and 1970, the Dateline A-588 is part of Hamilton's Dateline family of automatic date watches, a line that brought practical everyday wearability to Hamilton's American-era lineup. The A-588 runs on the caliber 64A, a 21-jewel automatic, housed in a stainless steel round case with hidden lugs. Production covered two years before the model was replaced or discontinued.
Dial and hour marker details on surviving examples can vary, so it pays to look closely at any A-588 in person rather than relying on photos alone. The hidden lug construction gives the case a cleaner profile than it might appear in listing images, and that detail tends to grow on people once they see it on the wrist. Finding one in genuinely unworn or lightly worn condition is less common than the production window might suggest.
Hamilton Catalog Images
1971
What to Look For
| Dial | Check the dial surface carefully for spotting, peeling, or moisture damage around the date window. Dial condition is the hardest thing to fix on a vintage Hamilton, and it drives value more than almost anything else on this model. |
| Crystal | Look for chips, deep scratches, or a crystal that sits slightly proud or loose in the bezel. On a watch this age, crystals are often replacements, and not all replacements fit correctly. |
| Movement | The 64A is an automatic, and lubricants dry out over decades in ways that create enough friction to stop the movement or cause erratic timekeeping even when the watch appears to be running. Ask about recent service history before buying. |
| Case | The hidden lug design means lug wear can be easy to miss at first glance. Look at the case from the side and check the lug tips for thinning or pitting. Case backs on these can be stubborn to open, so evidence of forced opening, like marring around the back, is worth noting. |
| Crown | The stem on the 64A is a two-piece design, which means the crown can separate from the stem during normal use if the watch has not been properly serviced. Confirm the crown sets the time and date crisply without any looseness or wobble. |
The Movement
The caliber 64A is a 21-jewel automatic movement from Hamilton's later American production period. It winds itself through the motion of the wearer's wrist and includes a date complication that advances at midnight. The 64A is a solid everyday movement, though like all watches of this era it needs periodic servicing to keep lubricants fresh and the date mechanism functioning reliably.