• 1864: Aristide Cavaillé-Coll
• 1969: Robert Chauvin

The instrument, commissioned from Aristide Cavaillé-Coll for the sum of 24,000 francs, was received and inaugurated by Alfred Lefébure-Wély on 29 July 1864.

"We believe that the Church of Jesus today possesses one of the best instruments known, as complete as possible, and meeting all needs, both as an accompaniment organ and as a performance organ.
We do not hesitate to say that Messieurs Cavaillé-Coll undoubtedly carried out more considerable work, but that certainly no instrument more remarkable for the quality of the stops and the perfection of the mechanism has emerged from their workshops.
(Semaine Catholique, 14 August 1864).

It should be noted that belonging to the intermediate period in the production of Aristide Cavaillé-Coll, all the 8' and 4' open back stops are paved (with the exception of the harmonic flutes), while the higher stops are cut on the tone.
The organ was rebuilt in 1969 by Robert Chauvin, who removed the 20-note pedalboard and installed a new 30-note pedalboard (the 10 high notes only). This instrument, lovingly maintained by Patrice Bellet, is one of the most attractive in the town.
The instrumental part of the instrument has been classified as a historical monument since 24 February 1977.