The personality cult surrounding Russian President Vladimir Putin is reaching new heights, and a growing number of Japanese are becoming curious about the details of his daily life.

A newly published 2017 calendar featuring the Russian leader, who is famous for shirtless horse riding, has become a hot-selling item in Japan, according to chain franchise store Loft, where the calendar has been exclusively available since late August.

Until this year the calendar has not been available in the nation's stores.