Achim
1695-1699: Building of the organ by Arp Schnitger.
1710: Repairs by Gregorius Struve. 1734: Repairs by Hinrich Solter. 1754: Repairs by Matthias Schreiber. 1792: Repairs by G.L. Freyse. 1794-1795: Repairs by G.W. Wilhelmy. 1888-1889: New organ by Fritz Becker. 1907: New organ by Furtwängler & Hammer 1966: New organ by Hillebrand. Specification according to the contract:| Hauptwerk | Brustwerk | Pedal | |||
| Principal | 8' | Gedact | 8' | Principal | 16' |
| Rohrfloit | 8' | Blockfloit | 4' | Octav | 8' |
| Octav | 4' | Octav | 2' | Octav | 4' |
| Gedact* | 4' | Quint | 1 1/3' | Nachthorn | 2'* |
| Nassat | 2 2/3' | Sesquialt | II | Mixtur | IV |
| Octav | 2' | Scharff | IV | Posaune | 16' |
| Cimbel | III | Regal | 8' | Tromet | 8' |
| Mixtur | IV | Cornet | 2' | ||
| Tromet | 8' |
Notes: