A calendar featuring male factory workers surrounded by semi-naked women has been branded sexist.

Created by a crane producing plant in Russia, the calendar features staff in a variety of scantily-clad poses with topless models.

The calendar is being distributed free to the clients of the plant in Naberezhnye Chelny in the central Russian Republic of Tatarstan.

It depicts workers and women in a series of risqué poses.

In one image, one woman milks another’s breasts, and in another, men dressed as scientists carry out experiments in a lab on two topless women.

The calendar claims to show “men’s frequent desires” and the women in the images are portrayed as secretaries and nurses - the factory said the shoot “turned out sexy and rich in emotion”.

But others online thought the calendar tacky. One person complained: “You can tell this was thought up by a man.