* Home screen widget
Put the Swiss railway clock on your home screen, at whatever size you like. Tap it to open the app. Android does not let widgets animate, so the second hand ticks instead of sweeping — for the real sweep, use the live wallpaper.
* Live wallpaper with your favorite clock face
Set the Swiss railway or seven-segment clock as your wallpaper. Choose its size and place it anywhere on screen, over a color or your own photo.