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The Miyota caliber 82S0 is from the 8215/821A family but offers a skeletonized dial design. There is also a gilt (gold tone) version available.
Miyota claims that the caliber 82S0 offers accuracy of -20 ~ +40 seconds per day. This is measured within 10-60 minutes from a full wind via the crown. To fully wind the movement, turn the crown 40 times. The winding direction of the rotor is counterclockwise.
82S0 vs 82S5/82S7:
The caliber 82S0 has the following layout:
Open balance (skeletonized) at 7:00
The caliber 82S5 and 82S7 are based on the same movement, but the caliber 82S5 has small seconds instead of central seconds. The caliber 82S7 has small seconds instead of central seconds and also a 24 hour (can also be day/night) indicator at 9:00.
Upgraded Hacking Seconds:
As of mid-2019, Miyota seems to have listened to the desires of the watch community and found a way to integrate a hacking mechanism (stop seconds device) into the 82S0. This means that the seconds hand will stop when the crown is pulled out. We have reached out to Miyota and will update this listing as soon as we have a reply with more information as to when they made this change. Keep in mind that although there are 82S0 movements popping up on the market, the current majority of 82S0 powered watches will be non-hacking. If you watch doesn’t hack, it doesn’t mean it’s broken.
Replacement prices were found online around $54.95.