Caliber reference
Ronda 762 caliber: dimensions and drop-in group
The published footprint of the Ronda 762 and which movements share it.
Used in: a small oval-form Swiss quartz movement without date, in small dress watches.
A small form caliber at 15.30 x 18.10 mm and 2.50 mm tall, the no-date sibling of the 763. It shares the 763's small footprint and stem and swaps with it within a matching small dial.
Drop-in group: Ronda small-form quartz (15.30 x 18.10 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.