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Brand: | Miyota | 
|
|---|---|---|---|
| Family: | |||
| Height: | 5.67 mm | ||
| Jewels: | 21 | ||
| Reserve: | 42 hours | ||
| Frequency: | 21600 A/h | ||
| Winding: | Automatic, Central Rotor Automatic Winding, Counter-Clockwise Automatic Winding, Uni-Directional Automatic Winding | ||
| Diameter: | 25.60 mm (11.5 ligne) | ||
| Complications: | Date, Hacking Seconds, Hand Winding, Quick Date Correction | ||
| Hands: | Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00, Date Window at 6:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Central-Rotor Automatic  Clockwise Balance Cock |
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| Production: 1977 – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Part of the Miyota Cal. 8200 family, Cal. 8215 was introduced in 1977 and remains in production as of 2020. Cal. 821A is substantially similar but better finished, with ribbing on the reverse side and a slotted rotor. A gilt version of each is also available.
All members of the Miyota 8200 family have indirect seconds, which causes a noticeable wobble to the central seconds hand. When struck, the seconds hand can appear to pause for up to 2 seconds due to slack in the movement.
Similar date-only movements in the Miyota 8200 family include Cal. 8210, 8210A, 821A, 8215A, and the hand-winding 8260 and 8260A.
Cal. 8215 is used by SevenFriday. Cal. 821A is used by Laco.
Sea-Gull’s Cal. ST1612 is similar in design to the Miyota 8215.
| Date at 3:00 | Date at 6:00 | |
 |  | |
| Black on White Date Wheel | 8215-21A 821A-43D 821A-43A | 8215-1TH 821A-43Z |
| White on Black Date Wheel | 8215-1AV | 821A-43K |
