Cambridge
1931–1953 · 10% Iridium Platinum
About the Cambridge
The Cambridge ran from 1931 through 1953, making it one of the longer-lived models in Hamilton's dress watch lineup of that era. It is a rectangular-cased watch in a 10% iridium-platinum case, powered at various points in its production by the caliber 982, 979, 982M, or 977, each carrying 19 jewels. The case material is worth noting for collectors: iridium-platinum is a dense, hard-wearing alloy that holds up remarkably well over decades but presents its own challenges during service. The Cambridge isn't part of a named family per se, but it runs alongside several similar dress models Hamilton produced through the same period.
Finding a Cambridge in solid shape is genuinely satisfying because the combination of iridium-platinum case and silver dial, when well-preserved, has a quality that photographs can't quite capture. The dial on later examples was described as a silver base with rhodium-plated 18K gold numerals, and condition of that silver surface matters a great deal to value. Dials that have been cleaned aggressively or exposed to moisture will show it, so close inspection before purchase is essential.
From the Catalog
By 1952, Hamilton described the Cambridge as an iridium-platinum cased watch with a sterling silver dial carrying rhodium-plated 18K gold numerals, finished with a gray leather strap, offered at price on application. Twenty years earlier at its introduction, the watch was positioned as a distinctive and modern sports watch in 14K yellow or white gold, priced at $125.
Hamilton Catalog Images
1931
1932
1951
1952
1953
What to Look For
| Dial | The silver dial with rhodium-plated 18K gold numerals is the centerpiece of this watch. Look for oxidation, spotting, or uneven tone on the silver surface. Any sign of aggressive cleaning or moisture intrusion should factor into your offer. |
| Crystal | Confirm the crystal sits correctly and isn't separating at the edges. On a watch this age, an ill-fitting replacement crystal is common and worth flagging. |
| Movement | The Cambridge used four different calibers across its run. Whichever is present, mainsprings on movements this age are frequently brittle or fatigued and often need replacement. Ask whether the watch has been serviced recently and by whom. |
| Case | Iridium-platinum wears hard but is not immune to dings and scratches over 70-plus years. Check the case back carefully: backs varied across the production run, and a mismatched back is not unusual. Make sure the back present fits correctly and closes flush. |
| Crown | Pull the crown gently through its positions and confirm it moves cleanly without slipping. The crown on watches this age is sometimes a replacement, and a poor fit can make hand-setting frustrating. |
The Movement
The Cambridge was fitted with the caliber 982, 979, 982M, or 977 depending on when it was produced. All are American-made Hamilton lever movements with 19 jewels, built to a high standard for dress watch use. They are not difficult movements to work with when properly maintained, but at this age dried lubricants are a common problem that can cause erratic rate or stalling under the light load of a thin case.