Eta Caliber 2892 A2

ETA Caliber 2892-A2

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Eta Caliber 2892 A2

Brand ETA
Caliber Number 2892-A2
Base Caliber
ETA 2892
Movement Type Automatic
Jewels 21
Diameter 11 1/2”’ (25.60mm)
Height 3.6mm
Power Reserve 42 hours
Lift Angle 51 degrees
Vibrations Per Hour 28,800 (4 Hz)
Shock System Incabloc
Regulator System ETACHRON
Rotor Ball bearing system
Winding Direction Bi-directional
Hacking? Yes
Features Hours, minutes, central seconds, date
Country of Manufacture Switzerland
Known Models Too many to list… (add yours in the comments below)

The ETA 2892-A2 is based on the original ETA caliber 2892 automatic watch movement.


Accuracy of the ETA caliber 2892-A2 can range from as much as +/-20 seconds per day to just +/-5 seconds/day. The accuracy that your watch experiences depends on the grade that the watch manufacturer chose to power their watches.


Similar to other ETA movements, there are 3 grades of production quality.

  • Elaborated Grade – Adjusted to four positions / average accuracy of +/-5 sec/day to +/-20 sec/day.
  • Top Grade – Adjusted to five positions / average accuracy of +/-4 sec/day to +/-15 sec/day.
  • Chronometer (COSC) Grade – Adjusted to five positions / average accuracy of -4/+6 sec/day.

From Wikipedia:

The key components which differ at the line of demarcation between Elaborated and Top are the pallet stones, balance wheel & hairspring, and the regulator mechanism. The degree of decoration on the movement’s parts also increases with the grade. –Source

Examples of watches with this caliber

Extra Information

  • Official 2892-A2 tech sheet here
  • Shop watches with 2892-A2 here

Please share your experiences and thoughts about the ETA caliber 2892-A2 in the comments below…

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Steve Steve Steve Allen Allen
Steve Steve Steve Allen Allen

+ Omega 1120?

Oumar Loupiz
Oumar Loupiz

Are you also going to post ETA 2897 ? or is it the same movement as the 2892 only with the Power Reserve complication?


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Bobby Bleu
Bobby Bleu

My Breitling Chrono Cockpit houses a Breitling 30 calibre that I believe is based on the ETA 2892-A2 movement. My Omega De Ville has a 1120 based off the ETA 2892-A2 also. Am I correct?

Philip Montenigro
Philip Montenigro

Mido Broncelli Heritage (specific editions).

Love this watch love this movement. More to come


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