hardware/drawable-anydpi-v21/ic_watch_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M20,12c0,-2.54 -1.19,-4.81 -3.04,-6.27L16,0H8l-0.95,5.73C5.19,7.19 4,9.45 4,12s1.19,4.81 3.05,6.27L8,24h8l0.96,-5.73C18.81,16.81 20,14.54 20,12zM6,12c0,-3.31 2.69,-6 6,-6s6,2.69 6,6 -2.69,6 -6,6 -6,-2.69 -6,-6z"/>
</vector>