A Schild – AS Calibre 1900 – Part No. 422 Crown wheel ring (NOS) Related posts: A Schild – AS Calibre 1715 – Part No. 422 Crown wheel ring (NOS) A Schild – AS Calibre 1716 – Part No. 422 Crown wheel ring (NOS) A Schild – AS Calibre 1900 – Part No. 422 Crown wheel ring (NOS)