ETA Caliber 2630

Manufacturer	ETA
Caliber Number	2630
Base Caliber	ETA 2620
Movement Type	Automatic, self-winding mechanical
Lignes	11.5”’
Casing Diameter	25.6mm
Total Diameter	26mm
Height	4.6mm
Jewel Count	25
Beat Rate	21,600 vph, 3 Hz
Lift Angle	52 degrees
Power Reserve	~38 hours
Rotor Style	Ball-bearing
Rotor Winding Direction	Bi-directional
Hand-Windable?	Yes
Anti-Shock Device	Incabloc
Hand Count	3
Functions	Central hours; central minutes; central seconds; day/date at 3:00
Hacking Seconds?	Yes
Quickset Date?	Yes
Quickset Day?	No
Country of Manufacture	Switzerland, Swiss made
Known Models	Various vintage watches, Technos Technabird, Technos Sky Light 200, Technos Sky Diver 250, Technos Kaiser II, Technos Skysonic (Add your watch to the comments below…)

ETA caliber 2630 is a vintage automatic watch movement with a day/date complication from the 1970s. This Swiss made caliber is part of ETA’s 2600 family of movements, with a frequency of 3 Hz (21,600 beats per hour) and 25 jewels.

The calendar complication features a quickset date, the day of the week is slowset.

Unlike most ETA movements, there is not much documentation available for the cal. 2630. There are a lot of 2630 examples found in vintage Technos watches, but other brands have featured the movement as well.

Additional Resources:

• More ETA watch movements

Image submitted by CC member Rodders