Dateline S-575
1966–1969 · Stainless Steel · Manual Wind
About the Dateline S-575
Made from 1966 through 1969, the Dateline S-575 is part of Hamilton's Dateline family, a line built around the calendar complication across both manual and automatic configurations. This model runs the caliber 674, a 17-jewel manual wind movement, housed in a stainless steel round case measuring 9mm thick. The white dial carries embossed silver numerals and markers with numerals at 6, 9, and 12, and a sweep seconds hand adds a clean, uninterrupted look to the face. At $59.95 when it launched in 1966, it was a solid entry into Hamilton's dress-casual range.
Embossed silver indices and numerals hold up well over time, but look closely at the calendar window and surrounding dial for any ghosting or moisture damage, which is more common on watches that were worn without fresh seals. The S-575 has a quiet kind of appeal: nothing flashy, just a well-proportioned stainless steel dress watch with a useful complication and a movement worth keeping running.
From the Catalog
Hamilton described the S-575 as shock-resistant, anti-magnetic, and featuring an unbreakable mainspring, with waterproof and dustproof protection when seals were intact. The 1966 retail price was $59.95.
Hamilton Catalog Images
1966
1968
What to Look For
| Dial | Check the area around the date window carefully. Moisture that gets past aging seals tends to show up there first, as staining or a faint tide mark. The embossed silver numerals and markers should be crisp and upright. Any that look flattened or shifted have likely been touched. |
| Crystal | Look for deep scratches or a pronounced greenish tint, which can indicate an older acrylic replacement rather than the correct period crystal. Minor surface scratches are expected and can be polished out. |
| Movement | The 674 is a manual wind, so wind it fully before evaluating. On any movement this age, dried lubricants can create enough friction to stop the watch entirely or cause it to run erratically. If it starts and then stops, or runs but loses significant time, assume it needs a service. A well-serviced 674 is a reliable and satisfying runner. |
| Case | Stainless steel cases from this era take polishing well, but over-polishing rounds off the lugs and erases the crispness of the original lines. Check the lug edges. The case back can be stubborn to open, so look for evidence of tool slippage around the edge, which suggests it has been worked on without the right equipment. |
| Crown | Test all crown positions: winding and date setting. The crown should move smoothly between positions without wobbling or feeling loose in the stem. A sloppy crown can mean a worn stem or damaged setting mechanism, and on a calendar movement, the date-setting parts are very small and not always easy to source. |
The Movement
The caliber 674 is a 17-jewel manual wind movement that Hamilton used across several dress and calendar models in the mid-to-late 1960s. It winds from the crown, keeps a steady beat, and is straightforward for a competent watchmaker to service. Nothing exotic about it, which is part of what makes it a dependable choice for everyday wear once it has been properly cleaned and lubricated.