Too many to list… (add yours in the comments below)
The Miyota caliber 8217 is from the affordable 8 Series family of what Miyota refers to as “Standard Automatics”. Caliber 8217 is based off of 8215/821A framework with the addition of a 24 hour hand at 9:00.
Some of the topics covered in this caliber listing:
What differentiates this caliber?
Aside from the hours/minutes/central seconds and date, this movement has a 24 hour subdial at 9:00.
Miyota claims that the caliber 8217 offers accuracy of -20 ~ +40 seconds per day.
Another movement that is similar is the Citizen caliber 4166.