A medium-sized organ which produces a beautiful and balanced sound – highly appropriate for the proportions of the church where it is installed. This, too, was voiced by Fernand Prince with the same mastery as the organs in Bergara and Azkoitia.
It cost 16,100 pesetas. It has two manuals, each with a compass of 56 notes and one pedalboard of 30, with a total of 15 stops. In 1979 it was restored by Alejandro Usabiaga of Hernani, respecting all its original characteristics.