Miyota · 21 series
2115
An analogue quartz movement with three hands and a date, offered with different calendar layouts.
At a glance
- Type
- Quartz
- Display / complication
- Date
- Architecture
- Battery-powered quartz, date wheel
- Timebase
- Quartz regulated
- Battery life
- Approx. 3 years
- Movement height
- 4.15 mm
Reference sources reviewed 7 November 2026. Published specifications, not independent measurements. Versions and complete-watch specifications can differ; fields without a verified figure are omitted or identified.
What distinguishes it
Look beyond the reference.
Miyota lists a 4.15 mm movement height and a nominal three-year battery life. The calendar adds useful daily information without requiring a mechanical winding system.
For the enthusiast
Date-window position and orientation matter: the manufacturer provides multiple calendar drawings. A shared movement reference does not mean every dial, date disc or hand-fitting configuration is suitable for the same case.