According to TLex, the 821A is "the new, nicely decorated version of the very dependable 8215". Information is still scarce, though.
- Size 25.6mm by 5.2mm, 11.5 ligne
- Hour, minute, central seconds, quickset date.
- 21 jewels
- Rate: 21,600 vph
- Power reserve: 45 hours
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