ETA 901.001 caliber vs Miyota 2115 caliber: specs compared
Updated 05 September 2026.
10
specs differ
ETA 901.001 caliber and Miyota 2115 caliber differ on 10 specs: maker, size, casing diameter, movement height, jewels, winding.
| Spec | ETA 901.001 caliber | Miyota 2115 caliber |
|---|---|---|
| Maker | ETA (Swatch Group) | Citizen Miyota |
| Size | 7 3/4 ligne | 8 3/4 ligne |
| Casing diameter | 17.20 mm | 23.30 mm |
| Movement height | 3.20 mm | 3.60 mm |
| Frequency | 32,768 Hz quartz | 32,768 Hz quartz |
| Jewels | 1 | 0 |
| Winding | quartz, battery 364 (SR621SW) | quartz, battery 377 (SR626SW) |
| Calendar / layout | centre seconds, no date | centre seconds, date at 3 |
| Hand fitting | small-caliber hour / minute / second bores | hour / minute / second |
| Stem | 901 stem | 2115 stem |
| Power reserve | battery, up to 40 months | battery, up to 3 years |
Questions and answers
How do ETA 901.001 caliber and Miyota 2115 caliber compare?
ETA 901.001 caliber and Miyota 2115 caliber differ on 10 specs: maker, size, casing diameter, movement height, jewels, winding.