The first Crystal, model 8011, was introduced in 1968, but it only reached production and Finland in 1971. At the time, the Crystal was a quite advanced tractor: its flat-floor cab represented the pinnacle of the era, the transmission was equipped with a hydraulic quick-shift, and draft sensing was done through the draft arms. The power take-off had a separate hydraulic clutch. The engine was a new 4.6-liter four-cylinder with power output ranging from 77 to 80 hp according to different sources. Product development was done in cooperation with Ursus, and some parts, such as the rear axles and hydraulics, were Polish. In 1972, the four-wheel-drive model 8045 was introduced. The driven front axle was manufactured by Universal in Romania.

The 6-cylinder 12011 and 12045 (115 hp) were introduced in 1974, five years after the prototype of the six-cylinder Crystal was unveiled.

In 1979, a heating and ventilation module was installed on the cab roof in Finland. In 1980, turbocharged models 10011/10045 (95 hp) and 16011/16045 (160 hp) were introduced internationally. These models were not brought to Finland, nor were the 75 hp 8011/8045 R models. In 1981, production was moved to the ZTS Martin factory in Slovakia. At the same time, the production of the turbocharged 10011/10045 and 16045 models began. Later, the 14011/14045 (140 hp) models were also introduced. Only a small number of the 10045 model were imported to Finland.

This is an automated translation. Please report any issues in the translation.