Seiko Caliber 5R66 No technical information found for this movement.Watches with the 5R66 movement5R66-0AA05R66-0AA15R66-0AB05R66-0AB15R66-0AC05R66-0AC15R66-0ACA5R66-0AD05R66-0AH05R66-0AJ05R66-0AK05R66-0AM05R66-0AN05R66-0AP05R66-0AR05R66-0AS05R66-0AT05R66-0AV05R66-0AY15R66-0BC05R66-0BE05R66-0BM05R66-0BN05R66-0BR05R66-0BS0