Auto Date Dorchester
1973–1974 · Stainless
About the Auto Date Dorchester
The Auto Date Dorchester was produced from 1973 through 1974, placing it in Hamilton's Auto Date family of date-display automatics from that era. The case is stainless steel, round, and generously sized at 36mm wide and 43mm long with hidden lugs and a 20mm lug width. The catalog listed it with a black dial and Hamilton's Q/C II quick-change date mechanism, which allowed the date to be set independently without running the hands around the dial.
Black dials from this period can show fading or spotting near the edges, so a close look at the dial under good light is worth the effort before buying. The hidden lug design keeps the case profile clean, but it also means case condition can be harder to assess at a glance since the lug-to-case transitions are tucked away. A well-preserved example in original condition, with the dial still crisp and even, is a satisfying find in a category that often shows its age.
From the Catalog
Hamilton marketed the Dorchester simply as a stainless steel automatic with a black dial and quick-change date, priced at $139.95. That price positioned it as a solid, no-frills daily wear option in Hamilton's lineup at the time.
Hamilton Catalog Images
1972
1973
What to Look For
| Dial | Check the black dial carefully for edge fading, spotting, or moisture damage. The applied indices should sit flat and even with no separation at the edges. Any flaking or discoloration around the date window is worth noting. |
| Crystal | The acrylic crystal on these can shrink slightly over time, which sometimes causes it to pop loose or sit unevenly in the bezel. Press gently on the crystal and check that it is seated firmly with no rocking. |
| Movement | Ask about service history. On a watch this age, dried oil creates enough friction to stop the movement even when it winds and sets normally. Let it run for several hours and confirm it keeps consistent time before trusting it. |
| Case | The stainless steel case holds up well over time, but check the hidden lug area and the case back edge for dings or signs of prying. The screw-down case back can be stubborn, and improper opening attempts sometimes leave marks. |
| Crown | Work the crown through all positions and confirm the quick-change date mechanism advances cleanly. The Q/C II mechanism has small components that can gum up if the movement has not been serviced in a long time. |
The Movement
The Auto Date Dorchester was sold with Hamilton's Q/C II quick-change date complication, which is a convenience feature that lets the wearer advance the date directly without cycling the hands through a full rotation. The automatic movement driving this watch winds itself through the motion of the wrist and includes a rotor that transfers energy to the mainspring as you wear it. These movements respond well to a proper service but can become sluggish and unreliable when the original lubricants have dried out over the decades.