ETA Caliber 2789 Watch Movement

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.

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