Alarm D
1968–1971 · yellow Gold Electroplate Auto
About the Alarm D
Made from 1968 through 1971, the Alarm D is part of Hamilton's small but fascinating family of alarm wristwatches, a category that required considerably more engineering than a standard timekeeping movement. The case is round, finished in yellow Gold Electroplate, and the watch carried a retail price of $120 in 1970. Under the dial sits a 17-jewel movement capable of both keeping time and triggering a mechanical alarm, which puts it in a different class of complexity from Hamilton's standard dress watches of the same era.
Finding an Alarm D in good condition takes some patience, largely because the alarm complication adds wear surfaces that a simple time-only movement doesn't have. The applied indices on the dial are worth a careful look, since Gold Electroplate cases from this period sometimes saw heavier polishing over the decades, and a well-preserved example with crisp dial and intact lug surfaces is genuinely harder to come by than the production window might suggest.
From the Catalog
Hamilton listed the Alarm D at $120 in 1970, positioning it as a mid-range offering in yellow gold electroplate on a strap, with the 17-jewel alarm movement included at that price.
Hamilton Catalog Images
1970
1971
What to Look For
| Dial | Check the applied indices closely. They should sit flush and evenly, with no separation from the dial, corrosion at the base, or discoloration around them. Alarm watches sometimes show moisture damage near the crown area, which can show up as spotting or fading on the dial face. |
| Crystal | Look for deep scratches or crazing. A heavily scratched crystal usually means the watch saw active daily use, which matters more on an alarm model where the movement was working harder than average. |
| Movement | Oil dries out on movements this age, and the alarm complication adds extra wear points that a standard movement doesn't have. A watch that runs but won't hold the alarm function reliably, or that runs inconsistently, is overdue for a full service. |
| Case | Yellow gold electroplate wears through over time, especially on high-contact areas like the lugs and caseback edge. Check for brass showing through at the corners. A lightly worn example with even plating is much more desirable than one that has been re-plated, which can obscure original detail. |
| Crown | Alarm watches typically have two crowns, one for setting the time and one for the alarm. Confirm both crowns are original, turn smoothly through their functions, and engage correctly. A missing or replaced crown on the alarm side is a common issue and can affect both function and value. |
The Movement
The 17-jewel movement inside the Alarm D handles two separate jobs: keeping accurate time and releasing a mechanical alarm at a set hour. That alarm function is driven by a separate mainspring from the timekeeping train, which means the watch has two springs to wind and two gear trains running in parallel. It's a more complex mechanism than most Hamilton movements of the period, and one that rewards careful, experienced servicing.