2つの時計やなくて1つの時計や
時計を裏表ひっくり返せる
https://i.imgur.com/kX6rcnl.jpg
https://i.imgur.com/kCu4n9z.jpg
https://i.imgur.com/vrYnhWv.jpg
https://i.imgur.com/ysnV7v4.jpg