TCA-5000
1968–1969 · Stainless Steel 5000
About the TCA-5000
Made from 1968 through 1969, the TCA-5000 is part of Hamilton's broader automatic lineup from the late 1960s. It runs on the caliber 676, a 17-jewel automatic movement, and comes in a round stainless steel case with hidden lugs and a date window at 3 o'clock. The water-resistant rating was a practical selling point for the period, though that designation should be understood in its historical context.
The black dial with dot hour markers gives this one a clean, legible look that holds up well, but condition of the dial surface is worth scrutinizing closely on any example you find. Hidden lug cases can accumulate grime and wear in the recesses where the lugs meet the case, so a close look at those areas tells you a lot about how the watch was treated over the decades.
From the Catalog
Hamilton listed the TCA-5000 at $110.00, describing it simply as a stainless steel, 17-jewel automatic with a calendar and bracelet, which captures how Hamilton positioned it: a solid, no-nonsense automatic for everyday wear at a price that put it in reach of a broad audience.
Hamilton Catalog Images
1970
What to Look For
| Dial | Look for even color across the black dial surface with no fading, spotting, or detaching markers. The dot hour markers should be uniform, and the date window at 3 o'clock should have a clean, legible date disc beneath it without discoloration or misalignment. |
| Crystal | Check the crystal for deep scratches or crazing that distort the dial view. A hazy or heavily scratched crystal is replaceable, but confirm the replacement is fitted properly with no gaps at the bezel. |
| Movement | Ask when the caliber 676 was last serviced. Oil in a movement of this age stiffens and loses its lubricating properties, and enough friction buildup can affect rate significantly or bring the watch to a stop. A movement that winds smoothly and runs consistently is a good sign, but that does not substitute for a proper service. |
| Case | The stainless steel case and hidden lug design can trap debris in the recesses around the lugs. Inspect those areas carefully for corrosion or pitting. Light surface scratches on the case are expected on a watch of this age, but deep gouges or evidence of aggressive polishing that rounds off the original case lines are worth factoring into your assessment. |
| Crown | Operate the crown through all its positions and confirm it winds the movement and sets the time and date smoothly. A crown that slips, feels loose, or does not click into position cleanly may indicate a worn stem or crown, both of which are serviceable but worth knowing about upfront. Also note that despite its original water-resistant rating, vintage watches of this age should not be trusted near water. |
The Movement
The caliber 676 is a 17-jewel automatic movement from Hamilton's Swiss-era production, wound by a rotor that captures energy from the motion of the wrist. It is a capable everyday movement, compact and reliable when properly maintained, though like any movement of this age it benefits from a full service if it has not been looked at in recent years. Dried lubricants in a movement this old can generate enough friction to affect timekeeping noticeably, or stop it altogether.