packages/SystemUI/res-keyguard/drawable/bubble_minute_hand.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:height="200dp"
    android:width="200dp"
    android:viewportHeight="100"
    android:viewportWidth="100" >
    <path
        android:fillColor="#000000"
        android:pathData="M50.082,0.025L50.082,0.025A13.985,15.63 0,0 1,64.067 15.656L64.067,49.029A13.985,15.63 0,0 1,50.082 64.659L50.082,64.659A13.985,15.63 0,0 1,36.097 49.029L36.097,15.656A13.985,15.63 0,0 1,50.082 0.025z"/>
</vector>