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ETA Caliber 2789
ETA Caliber 2789

ETA Caliber 2789

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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