Thinline 2003
1962–1963 · 14k Solid Yellow Gold · Manual Wind
About the Thinline 2003
Made from 1962 through 1963, the Thinline 2003 is part of Hamilton's Thinline family, a line built around slim cases and compact movements that reflected the sleek aesthetic of early 1960s American watch design. The case is 14K yellow gold in a clean circular form, paired with a silver dial carrying applied gold numerals and applied gold markers at the remaining positions, with numerals at 6 and 12. Power comes from the caliber 687, a 17-jewel manual wind movement. A subseconds hand sits at the expected position, and the watch was rated weatherproof and shock-resistant from the factory.
Finding a Thinline 2003 in honest condition means paying close attention to the applied gold dial furniture, which can show separation or loss after six decades. The 14K gold case holds up well over time but inspect the lugs carefully since the hidden lug design can make wear harder to spot at a glance. Hamilton's original marketing also noted a choice of white or black luminous dials alongside the standard silver version, so examples do turn up with different dial configurations than the catalog photo suggests.
From the Catalog
Hamilton listed the Thinline 2003 at $125.00 in both the 1962 and 1963 catalogs, describing it simply as a 14K yellow gold case on strap. The original marketing positioned the Thinline line around its slim profile and modern proportions, calling out the 17-jewel movement, lifetime mainspring, and weatherproof rating as practical credentials behind the dress-watch looks.
Hamilton Catalog Images
1962
1963
What to Look For
| Dial | Look closely at the applied gold numerals and markers. After 60-plus years, these can pull away from the dial at the edges or go missing entirely. Make sure all indices are present, seated flat, and free of corrosion at their bases. The silver dial surface should be even in tone without spotting or moisture damage under the crystal. |
| Crystal | Check for deep scratches or crazing. A worn crystal is replaceable, but confirm the fit is correct for the case, and look through it at an angle to make sure it isn't distorting the dial view. |
| Movement | Ask when the caliber 687 was last serviced. Dried oil in a movement this age creates enough friction to stop it entirely or cause it to run inconsistently. A watch that runs briefly after a few winds but stops on its own is a common sign it needs attention. |
| Case | The 14K yellow gold case is durable but not immune to wear. The hidden lug design makes it worth examining from multiple angles to get a true read on how much lug thickness remains. Check the case back for deep scratches or evidence of forced opening. |
| Crown | Wind and set the watch if possible. The crown should engage smoothly without slipping or feeling gritty. A worn crown or damaged stem will affect daily usability and can be a more involved fix depending on parts availability. |
The Movement
The caliber 687 is a slim 17-jewel manual wind movement that Hamilton used across several dress watches of this era. It winds and sets cleanly when properly serviced, and its compact architecture is what allowed the Thinline cases to stay as trim as they did. Like any movement of this age, the lubricants have long since dried out, and dried oil creates enough friction to stop the watch or cause erratic timekeeping, so a service is worth factoring in before putting one on the wrist.