ETA Calibre 2771 – Part No.242 Cannon Pinion with Driving Wheel Related posts: ETA Calibre 2763 – Part No.242 Cannon Pinion with Driving Wheel ETA Calibre 2789 – Part No.242 Cannon Pinion with Driving Wheel ETA Calibre 2790 – Part No.242 Cannon Pinion with Driving Wheel