Thinline 6514
1970–1973 · 10k Yellow RGP/ssb · Stemwound
About the Thinline 6514
Made from 1970 through 1973, the Thinline 6514 is part of Hamilton's Thinline family, a line built around slim, refined cases suited to the dress watch tastes of the era. The case is 10k yellow rolled gold plate with a stainless steel back, and the watch carries a distinctive green dial that sets it apart from the more common white and silver-toned dials found across the Thinline range. Hidden lugs give the case a clean, integrated look that reads as more dressy than sporty. The original retail price was $95.00 in 1972.
The green dial is the defining feature here, and its condition will make or break the piece. These dials can develop fading or spotting over fifty-plus years, so look closely for even color and no lifting at the edges. The applied indices add some dimension to the dial, and any loss or misalignment there is worth factoring into the price.
From the Catalog
Hamilton listed the 6514 simply as a 10k rolled gold plate model with stainless steel back and green dial, priced at $95.00. At that price point in 1972, it positioned the watch squarely as an accessible dress piece within the Thinline offering.
Hamilton Catalog Images
1970
1971
1972
1973
What to Look For
| Dial | Green dials can fade unevenly or develop moisture spotting over time. Look for consistent color across the full surface, no discoloration near the edges, and confirm that all the applied indices are present, seated flat, and properly aligned. |
| Crystal | Check for deep scratches or crazing. A worn crystal is replaceable, but inspect the dial underneath for any moisture damage that may have crept in through a compromised crystal over the years. |
| Movement | Confirm the watch winds and runs. Dried lubricants generate enough friction to stop a movement outright, so a watch that won't run after fully winding likely needs a service before anything else. |
| Case | RGP cases show wear at the lugs and high points first. Look at the lug edges and the area around the crown for worn-through plating that exposes the base metal underneath. The hidden lug design can trap grime, so inspect those recesses closely. |
| Crown | Test the crown through winding and setting. It should feel smooth and engage cleanly without slipping. Also note that even though this watch was originally rated water resistant, the seals on a vintage watch this age should not be trusted around water. |
The Movement
Hamilton sourced movements for the Thinline family from its Swiss operations during this period, consistent with the brand's broader transition in the late 1960s and early 1970s. The specific caliber for this reference was not recorded in available documentation, so it is best confirmed by opening the case back. If the movement is running, look for smooth sweep and even timekeeping as a basic indicator of health before committing to a service.