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Miyota watch movements

Miyota is Citizen's movement arm and one of the largest makers of mechanical calibers in the world, supplying affordable automatics used across many brands.

Who Miyota is

Miyota is the movement-making division of Citizen and produces mechanical and quartz calibers in enormous numbers. Its automatics, particularly the 8215 and the later 9015, are a mainstay of affordable and microbrand mechanical watches.

Miyota movements are dimensioned to their own standards rather than the Swiss ligne footprints, so matching a Miyota donor means checking its specific diameter, height and stem position rather than assuming ETA compatibility.

The 8000 and 9000 families

The 8215 is the long-serving workhorse: robust, widely available, with a characteristic non-hacking seconds and a unidirectional rotor. The 9015 is the slimmer, higher-beat modern automatic, hacking and hand-winding, aimed at thinner watches.

Both, along with the 8205, 821A, 9039 and the quartz 90S5, have their own pages here with exact dimensions, so a Miyota-based watch can be matched to the right donor within the range.

Choosing a Miyota donor

Within the Miyota range the upgrade path is usually from an 8000-series to a 9000-series caliber when the case allows the different height, or a like-for-like replacement of the same caliber. The fitment tool shows which Miyota movements share a footprint.

As always, a shared diameter and height is the start, not the end: the dial feet and hand fittings decide whether the swap is truly drop-in.

Miyota against the Swiss workhorses

Miyota calibers are often chosen where a Swiss ETA or Sellita would be the traditional fit, because they cost less and are made in large numbers. They are not, however, dimensional drop-ins for the Swiss footprints: a Miyota is sized to its own standard, so a case built for an ETA 2824-2 is not simply a home for an 8215.

This is why the movement in a watch has to be identified before a donor is chosen. A Miyota-based watch is matched to another Miyota that shares its footprint, not to a Swiss caliber of a similar headline size.

Find the drop-in donor

Open the MovementSwap fitment toolMatch a caliber to the movements that share its case.Find miyota 8215 movement on eBayaffiliate

Miyota 8215caliber and drop-in group Miyota 8205caliber and drop-in group Miyota 821Acaliber and drop-in group Miyota 9015caliber and drop-in group Miyota 9039caliber and drop-in group Miyota 90S5caliber and drop-in group ETA movementsSwitzerland movement house Sellita movementsSwitzerland movement house Seiko and TMI movementsJapan movement house Ronda movementsSwitzerland movement house All movement housesBrowse every maker

Sources: Miyota (Wikipedia) · Movement datasheets (as cited on each caliber page)