Accumatic A-201B
1971 · 14K yellow · Automatic
About the Accumatic A-201B
Produced from 1968 through 1971, the Accumatic A-201B is part of Hamilton's long-running Accumatic family of automatic wristwatches. It runs on the caliber 689A, a 17-jewel automatic movement, and is housed in a 14K yellow gold case with a matching gold bracelet. The dial is white with a tonneau shape and textured gold markers, giving it a clean, understated look that fits the late-1960s taste for integrated bracelet watches.
Finding one with the original bracelet intact is increasingly uncommon. Integrated bracelet watches from this era took hard wear, and many lost links or ended up on replacement straps over the decades. The textured gold markers on the dial are part of the printed surface, so any past cleaning attempts may have compromised them. A dial in honest original condition, even with some age patina, is preferable to one that has been disturbed.
From the Catalog
Hamilton's 1968 catalog described the A-201B simply and directly: a 14K yellow gold case and bracelet at $395. That price reflected the integrated gold bracelet as part of the package, which was a significant portion of the watch's original value and appeal.
Hamilton Catalog Images
1968
1971
What to Look For
| Dial | The white dial has a printed surface, which means any attempt to clean it in the past could have lifted or faded the textured gold markers. Look closely under good light for uneven marker appearance, ghosting, or surface cloudiness that might suggest previous cleaning. |
| Crystal | Check for deep scratches or crazing. A replacement crystal is straightforward if needed, but make sure the fit is correct around the tonneau dial shape. |
| Movement | Oil in the caliber 689A dries out over time and creates enough friction to stop the watch even if the rotor spins freely. A watch that winds but stops intermittently often just needs a full service rather than anything more serious. |
| Case | The 14K yellow gold case should show a warm, consistent color. Look for solder repairs near the lugs or bracelet attachment points, which were stress areas on integrated bracelet designs. Verify the case back closes fully and securely. |
| Crown | Check that the crown pulls and sets smoothly without wobble or grinding. A loose or damaged crown can compromise the case seal and is worth addressing before wearing the watch. |
The Movement
The caliber 689A is a 17-jewel automatic movement from Hamilton's later production period. It uses a bidirectional winding rotor and a Glucydur balance wheel, which is a beryllium copper alloy designed for temperature stability. It's a reliable caliber when properly serviced, but like most vintage automatics of its era, it benefits from a full cleaning and oil refresh every several years.