The A. Schild 698 watch movement is a mechanical movement with a pin-lever escapement. The calibre designations and features associated with this movement are not reliably documented, but all calibres within this series are signed as either 420 or 420/425. This movement encompasses several functions, including manual winding, sweep seconds, shock protection, sweep seconds, pin lever, calendar, and it was predominantly used during the period of approximately 1975.