A Schild – AS Calibre 1901 – Part No. 415 Ratchet wheel (NOS) Related posts: A Schild – AS Calibre 1901 – Part No. 407 Clutch wheel (NOS) A Schild – AS Calibre 1901 – Part No. 420 Crown wheel (NOS) A Schild – AS Calibre 1901 – Part No. 450 Setting wheel (NOS)