ETA / Unitas 6497-1 caliber vs ETA / Unitas 6498-1 caliber: specs compared
Updated 05 September 2026.
2
specs differ
ETA / Unitas 6497-1 caliber and ETA / Unitas 6498-1 caliber differ on 2 specs: calendar / layout, stem.
| Spec | ETA / Unitas 6497-1 caliber | ETA / Unitas 6498-1 caliber |
|---|---|---|
| Maker | ETA (Swatch Group) | ETA (Swatch Group) |
| Size | 16 1/2 ligne | 16 1/2 ligne |
| Casing diameter | 36.60 mm | 36.60 mm |
| Movement height | 4.50 mm | 4.50 mm |
| Frequency | 18,000 A/h (2.5 Hz) | 18,000 A/h (2.5 Hz) |
| Jewels | 17 | 17 |
| Winding | manual | manual |
| Calendar / layout | small seconds at 9 | small seconds at 6 |
| Hand fitting | hour / minute / small-second sub-hand | hour / minute / small-second sub-hand |
| Stem | 6497 stem | 6498 stem |
| Power reserve | approx. 46 h | approx. 46 h |
Questions and answers
How do ETA / Unitas 6497-1 caliber and ETA / Unitas 6498-1 caliber compare?
ETA / Unitas 6497-1 caliber and ETA / Unitas 6498-1 caliber differ on 2 specs: calendar / layout, stem.