Miyota 8245 caliber: dimensions and drop-in group

Used in: the fullest-calendar 8200 member, with day, date and a 24-hour indicator.

An 8200-family caliber at 26.00 mm x 5.67 mm carrying day, date and a 24-hour sub-hand. It shares the family footprint with the 8205 and 8215 but needs a dial printed for its added complications.

Drop-in group: Miyota 8200 footprint, day-date + 24h (26.00 mm x 5.67 mm). Matching diameter and height is necessary but not sufficient. A donor is only a true drop-in when the dial-foot positions, hand-hole sizes, stem length and calendar layout also match. Two movements can share a case and still need a new dial, re-broached hands or a cut-to-length stem.