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.
Replacement prices were found online around $54.95.