A Schild – AS Calibre 1906 – Part No. 311 Upper cap jewel with end-piece, for balance (NOS) Related posts: A Schild – AS Calibre 1704 – Part No. 311 Upper cap jewel with end-piece, for balance (NOS) A Schild – AS Calibre 1717 – Part No. 311 Upper cap jewel with end-piece, for balance (NOS) A Schild – AS Calibre 1885 – Part No. 311 Upper cap jewel with end-piece, for balance (NOS)