Miyota 8215

The Miyota 8215 is a Japanese automatic wristwatch movement that is used by many watch makers. Miyota is part of the Citizen group of companies.^[1] Most watch makers do not make their own movements, but use standard watch movements manufactured by specialized companies. The Miyota 8215 is used by many watchmakers such as Bernhardt Watches,^[2] Camel, Citizen, Dugena, Festina, Jacques Lemans, Kyboe, Invicta, Lip, Laco and Perseo.

The Miyota 8215 is a non-hacking twenty-one (21) jewel three-hand with date movement with a uni-directional winding system (left rotation) with an accuracy of -20 to +40 seconds per day, and a power reserve of over 40 hours. The diameter of the movement is 26 mm and the thickness is 5.67 mm. It beats at 21,600 BPH or 3 Hz (6 half-cycles per second).^[3][4]

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  Miyota 8215 movement in an Invicta 8926.
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  Miyota 8215 movement in an Invicta 8926, closeup.
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  Miyota 8215 movement in an Invicta 8926, closeup.

References

1. ↑ Miyota page at Citizen Watch Co.
2. ↑ Bernhard Binnacle Diver Watch uses Miyota 8215
3. ↑ Miyota 8215 specification
4. ↑ Miyota 8215 Manual