Dateline A-475
1964–1965 · 10k Yellow Gold Filled · Automatic
About the Dateline A-475
Made from 1964 through 1965, the Dateline A-475 is part of Hamilton's Dateline family, a line built around the practical appeal of a date display in an automatic wristwatch. The A-475 runs on the caliber 694, a 17-jewel automatic movement, housed in a cushion-shaped 10K yellow Gold Filled case with a silver dial and sweep seconds hand. Applied gold markers serve as the only hour indicators, giving the dial a clean, uncluttered look that keeps the date window front and center. At $100 on release, it landed at a price point that made calendar-equipped automatics genuinely accessible.
Applied gold markers on these dials can pull away from the dial at their bases over the decades, so checking each one carefully under good light is worth the time. The silver dial is prone to aging in ways that range from pleasant patina to moisture-related spotting, so condition varies considerably from example to example. The cushion case shape and swept lugs give the A-475 a character that sets it apart from the round-cased A-476 and the other Dateline variants, and finding one with the dial in honest, undamaged shape is genuinely satisfying.
From the Catalog
Hamilton described the A-475 simply as a calendar watch in a 10K yellow gold-filled case, priced at $100 in 1964. The pitch was straightforward: automatic movement, date complication, gold-filled case, at a price that put it within reach of a broad market.
Hamilton Catalog Images
1964
1965
What to Look For
| Dial | Look closely at each applied gold marker under magnification or a loupe. Markers showing separation, tilting, or missing pieces are common on dials this age and directly affect value. Check the silver dial surface for spotting, bubbling, or moisture damage around the date window, which is a vulnerable area. |
| Crystal | These cases open through the crystal rather than the case back, which means an amateur opening attempt often leaves gouge marks around the crystal bezel. Inspect that area carefully. A correct replacement crystal should seat cleanly with no gaps. |
| Movement | The caliber 694 is an automatic and should wind from wrist motion, but dried oil on a movement this age creates enough friction to stop even a healthy rotor from doing its job. If it's running sluggishly or stopping at rest, a service is overdue. The date mechanism on these movements involves small springs that require careful handling during service. |
| Case | Check the case back for pry marks, which are a sign of someone attempting to open it from the wrong side. The 10K yellow gold-filled case can show wear through to the base metal on high-contact areas like lugs and case edges. Some honest wear is expected, but deep wear-through affects long-term wearability. |
| Crown | The crown should pull out to two positions smoothly and set both the time and the date without slipping. A crown that's hard to pull or that spins without engaging is a service flag. On a movement this age, original weatherproofing seals are no longer reliable, so treat it as non-water-resistant regardless of its original rating. |
The Movement
The caliber 694 is a 17-jewel automatic movement built by Hamilton to power their date-equipped Accumatic and Dateline models through the 1960s. It winds from a bidirectional rotor, meaning normal wrist movement keeps the mainspring topped off without any manual winding required. It's a capable everyday movement, though like any automatic of this vintage it benefits significantly from fresh lubrication and a full service to keep the date mechanism and escapement running as they should.