ETA 2801-2 caliber vs ETA 2892-A2 caliber: specs compared
Updated 05 September 2026.
4
specs differ
ETA 2801-2 caliber and ETA 2892-A2 caliber differ on 4 specs: movement height, jewels, winding, calendar / layout.
| Spec | ETA 2801-2 caliber | ETA 2892-A2 caliber |
|---|---|---|
| Maker | ETA (Swatch Group) | ETA (Swatch Group) |
| Size | 11 1/2 ligne | 11 1/2 ligne |
| Casing diameter | 25.60 mm | 25.60 mm |
| Movement height | 3.35 mm | 3.60 mm |
| Frequency | 28,800 A/h (4 Hz) | 28,800 A/h (4 Hz) |
| Jewels | 17 | 21 |
| Winding | manual | automatic, bidirectional |
| Calendar / layout | centre seconds, no date | centre seconds, date at 3 |
| Hand fitting | hour 1.50 / minute 0.90 / second 0.20 mm (bore) | hour 1.50 / minute 0.90 / second 0.20 mm (bore) |
| Stem | tap 0.90 | tap 0.90 |
| Power reserve | approx. 42 h | approx. 42 h |
Questions and answers
How do ETA 2801-2 caliber and ETA 2892-A2 caliber compare?
ETA 2801-2 caliber and ETA 2892-A2 caliber differ on 4 specs: movement height, jewels, winding, calendar / layout.