Dateline A-691
1972–1974 · 14k Gold EP
About the Dateline A-691
The Dateline A-691 was produced from 1972 through 1974, sitting within Hamilton's Dateline family of date-displaying automatics that brought practical complications to everyday dress watches. The movement inside is Hamilton's caliber 694A, an automatic with a date function, housed in a round 14k Gold Electroplate case. Hamilton offered it in two configurations: a white case version with a grey dial and a yellow case version with a gilt dial, each available with either a strap or bracelet.
Dial condition is the first thing worth scrutinizing on any A-691 you come across. The applied indices catch light well when the dial is clean and undamaged, but they can show separation or corrosion at the base if moisture ever found its way inside, which happens more often than sellers acknowledge on watches this age. The two-dial, two-case-color structure means there are four distinct configurations to collect, and matching the right case color to the right dial matters to how the watch was originally intended to be presented.
From the Catalog
Hamilton listed the A-691 at $150.00 with a strap and $160.00 with a bracelet, describing it with its dial and case color variants as distinct references. That price point in 1974 placed it firmly in Hamilton's accessible mid-range, meant to offer a clean automatic date watch without the cost of solid gold.
Hamilton Catalog Images
1971
1972
1973
1974
What to Look For
| Dial | Look closely at the applied indices for any separation at the edges or dark staining at their bases, which signals past moisture intrusion. The dial surface itself, grey or gilt depending on the variant, should be even in color with no spotting or bubbling. |
| Crystal | Check the crystal for deep scratches or chips around the edges. Replacement crystals for round dress watches from this era are generally available, but confirm the fit is correct before buying. |
| Movement | Ask about service history. Dried lubricants in a 694A create enough friction to degrade timekeeping or stop the movement entirely, and the spring-loaded components in the date mechanism are small and easy to lose during a careless service. |
| Case | Gold electroplate wears through at high-contact points over decades, so examine the lugs and caseback edges carefully. The hidden lugs on this case style can trap debris but also tend to show less visible wear than exposed lugs. |
| Crown | The crown should thread or seat smoothly and operate the date and time functions without slipping. A worn or replaced crown that doesn't seal properly leaves the movement exposed, and vintage watches like this have no reliable water resistance regardless of original ratings. |
The Movement
The caliber 694A is a Swiss-made automatic with a date complication. It winds itself through the motion of the wearer's wrist and displays the date through an aperture in the dial. Hamilton used this movement across several of their date models in the early 1970s, and it's a capable workhorse, though it rewards fresh lubrication and a proper service to keep the date mechanism running cleanly.