ETA Caliber 1080

Manufacturer	ETA
Caliber Number	1080
Movement Type	Mechanical, manual-wind
Lignes	10.5”’
Diameter Overall	23.7mm
Casing Diameter	23.3mm
Height	4.15mm
Jewel Count	17
Beat Rate / Frequency	18,000 bph / 2.5 Hz
Lift Angle	52 degrees
Power Reserve	~40 hours
Anti-Shock Device	Incabloc
Hand Count	3
Hand Sizes	1.5mm (hrs) / .90mm (mins) / .20mm (secs)
Functions	Central hours; central minutes; central sweeping seconds
Hacking Seconds?	Yes
Country of Manufacture	Switzerland, Swiss made
Known Models	(Add your watch to the comments below…)

The ETA caliber 1080 is a vintage mid-size handwound mechanical movement.

In official tech sheets, ETA describes the cal. 1080 as:

“Lever sweep second stop, bevelled edges.”

Sweep second stop refers to what the community now calls hacking seconds.

ETA 1080 VS 1081:

There is a similar calbre 1081 with the main difference being that the 1080 is 10.5”’ (23.7mm diameter) and the 1081 is 11.5”’ (26mm diameter).

The framework is essentially the same with the two movements, however, the 1081 simply has a larger diameter mainplate which extends the size.

Additional Resources:

• More ETA mentions