Manufacturer | ETA |
Caliber Number | 2789 |
Movement Type | Automatic, self-winding mechanical, day/date |
Lignes | 11.5”’ |
Diameter | 25.6mm |
Height | 5.9mm |
Jewel Count | 17 or 25 |
Beat Rate | 21,600 vph, 3 Hz |
Lift Angle | 52 degrees |
Power Reserve | ~38 hours |
Rotor Style | Ball-bearing |
Rotor Winding Direction | Bidirectional |
Hand-Windable? | Yes |
Anti-Shock Device | Incabloc |
Hand Count | 3 |
Functions | Central hours; central minutes; central sweeping seconds; day/date at 3:00 |
Hacking Seconds? | Yes |
Quickset Date? | Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models | Various vintage watches by Rado, Fortis, Certina, Helvetia, Valgine, Framont, Phenix, Altanus, Valley, Brasillia, Baylor, Sigma, Technos, Wittnaurer Geneve, Silvana, Mirexal, Vialux, Edox, etc. (Add your watch to the comments below…) |
The ETA caliber 2789 is a vintage automatic watch movement with a day-date calendar complication.
This caliber is similar to the ETA 2779 with the main difference being that the 2789 has a day and date corrector, whereas the 2779 is listed as only having a quickset date corrector.
There is also a 2789-1 which has a multi-lingual day of the week, offering the day in two languages.
Additional Resources:
Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…
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