Chronograph 360
1970–1971 · Stainless Steel · Automatic
About the Chronograph 360
Made from 1970 through 1971, the Chronograph 360 is a stainless steel sports chronograph from the final years of Hamilton's American production era. It runs on a two-register chronograph movement and came on a strap, priced at $115.00 when new. The hooded lug design gives it a distinctly tool-watch character that reads as very much of its moment. Hamilton offered it in two configurations: a standard two-register version and a calendar variant.
Surviving examples in good shape are not common, partly because chronographs of this era saw real use and partly because the two-year run kept total production numbers modest. The applied indices are worth a close look in person, as any lifting or spotting underneath the dial surface affects both appearance and value. Finding a clean example with an honest dial and unpolished hooded lugs intact is genuinely satisfying.
From the Catalog
Hamilton listed the Chronograph 360 in stainless steel with a 17-jewel movement, two registers, and a strap at $115.00, positioning it as a capable tool chronograph at a serious but accessible price point for 1970.
Hamilton Catalog Images
1970
1971
What to Look For
| Dial | Look closely at the applied indices for any lifting, corrosion underneath, or gaps where moisture has crept in. The chronograph subdials should be clean with no fading or flaking. Check that the printing on chapter rings and registers is crisp and not rubbed away from use. |
| Crystal | Check for deep scratches or crazing in the crystal. A fogged or yellowed crystal often signals moisture history inside the case, which is a bigger concern than the crystal itself. |
| Movement | A chronograph movement carries more components than a standard caliber, and lubricants dry out over decades. A watch that hesitates, stops during chronograph operation, or shows irregular seconds hand motion is telling you it needs a full service before daily wear. |
| Case | The hooded lugs on this model are a defining feature and difficult to restore once over-polished. Look for lug surfaces with original finishing still intact. Check the case back for dents or tool marks from previous openings, and confirm the gasket area is clean and undamaged. |
| Crown | Pull through each crown position and check for smooth, positive detents. A sticky or loose crown on a water-resistant case can indicate a damaged stem or worn gasket. Even though this watch was originally rated water-resistant, vintage seals should not be trusted without fresh gaskets installed by a watchmaker. |
The Movement
The Chronograph 360 runs Hamilton's caliber with two chronograph registers, a configuration that tracks elapsed minutes alongside the running seconds. It is a 17-jewel movement, a jewel count that provides adequate protection for the movement's busiest friction points. Chronograph movements of this period require more involved servicing than a simple three-hand caliber, so budgeting for a proper overhaul is part of responsible ownership.