Miyota 2115 caliber vs Miyota 821A caliber: specs compared
Updated 05 September 2026.
9
specs differ
Miyota 2115 caliber and Miyota 821A caliber differ on 9 specs: size, casing diameter, movement height, frequency, jewels, winding.
| Spec | Miyota 2115 caliber | Miyota 821A caliber |
|---|---|---|
| Maker | Citizen Miyota | Citizen Miyota |
| Size | 8 3/4 ligne | 11 1/2 ligne |
| Casing diameter | 23.30 mm | 26.00 mm |
| Movement height | 3.60 mm | 5.67 mm |
| Frequency | 32,768 Hz quartz | 21,600 A/h (3 Hz) |
| Jewels | 0 | 21 |
| Winding | quartz, battery 377 (SR626SW) | automatic, unidirectional |
| Calendar / layout | centre seconds, date at 3 | centre seconds, date at 3 |
| Hand fitting | hour / minute / second | hour 1.50 / minute 0.90 / second 0.20 mm (bore) |
| Stem | 2115 stem | 8200-series stem |
| Power reserve | battery, up to 3 years | approx. 42 h |
Questions and answers
How do Miyota 2115 caliber and Miyota 821A caliber compare?
Miyota 2115 caliber and Miyota 821A caliber differ on 9 specs: size, casing diameter, movement height, frequency, jewels, winding.