Brand: | Miyota | ||
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Family: | |||
Height: | 5.55 mm | ||
Jewels: | 21 | ||
Reserve: | 42 hours | ||
Frequency: | 21,600 A/h | ||
Winding: | Automatic, Central Rotor Automatic Winding, Counter-Clockwise Automatic Winding, Uni-Directional Automatic Winding | ||
Diameter: | 25.60 mm (11.5 ligne) | ||
Complications: | Hand Winding | ||
Hands: | Central Hour Hand, Central Minute Hand, Central Seconds Hand |
Distinguishing Technical Characteristics | |||||||||||
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Central-Rotor Automatic Clockwise Balance Cock |
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Production: – | |||||||||||
1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Part of the Miyota Cal. 8200 family, Cal. 8N24 is a skeletonized three-handed movement. Cal. 8N24 remains in production as of 2019. A gilt version is also available. Cal. 8N26 is similar but with a longer hand mounting pinion.
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.
No Date | Date Only | Day-Date | |
Hand Winding | 8270 8N33 SK | 8260 | |
Automatic Central Seconds | 8228A OH 82S0 PS OH 8N24 SK 8N26 SK HH | 8210 8215 SR 821A | 8200 8203 8205 SR 820A 8285 SR OD |
Automatic 24 Hour Hand | 8247 82D7 OH | 8217 | |
Automatic Small Seconds | 8245 82S5 PS OH 8N40 PS | 8218 | |
Automatic 24 Hour Hand Small Seconds | 82S7 PS OH | 8219 |
- OH = Open Heart at 7:00
- SK = Skeleton
- PS = Partial Skeleton
- HH = High Hands
- OD = Outer Date
- SR = Solid Rotor