Japan brushed kanji with round [black face] square

This clock is made of black Japanese paper with Kanji character written within a double circle. All stains within the inner circle indicate the position of the minute hand. 黒の和紙の上に、二重の円内に書かれた漢字の文字盤の時計です。内側の円にある全てのシミは分針の位置を表しています。