ETA 2893-2 caliber vs ETA Valjoux 7750 caliber: specs compared
Updated 05 September 2026.
9
specs differ
ETA 2893-2 caliber and ETA Valjoux 7750 caliber differ on 9 specs: size, casing diameter, movement height, jewels, winding, calendar / layout.
| Spec | ETA 2893-2 caliber | ETA Valjoux 7750 caliber |
|---|---|---|
| Maker | ETA (Swatch Group) | ETA (Swatch Group) |
| Size | 11 1/2 ligne | 13 1/4 ligne |
| Casing diameter | 25.60 mm | 30.00 mm |
| Movement height | 4.10 mm | 7.90 mm |
| Frequency | 28,800 A/h (4 Hz) | 28,800 A/h (4 Hz) |
| Jewels | 21 | 25 |
| Winding | automatic, bidirectional | automatic, unidirectional |
| Calendar / layout | centre seconds, GMT 24h hand, date at 3 | chronograph, subdials at 6-9-12, day and date at 3 |
| Hand fitting | hour 1.50 / minute 0.90 / second 0.20 mm (bore), plus 24h GMT hand | chronograph, subdial and centre hands per 7750 spec |
| Stem | tap 0.90 | 7750 stem |
| Power reserve | approx. 42 h | approx. 48 h |
Questions and answers
How do ETA 2893-2 caliber and ETA Valjoux 7750 caliber compare?
ETA 2893-2 caliber and ETA Valjoux 7750 caliber differ on 9 specs: size, casing diameter, movement height, jewels, winding, calendar / layout.