The 644 was produced in Neuss (GER) from 1974 to 1980.
From 1976 onwards, the tractor could be factory-equipped with "Comfort 2000."
Power: 60hp
Top speed: 30 km/h
Operating hours: 3340 h
Fuel capacity: 74 ltr
Price: 14,800 - 29,900 €
Maintenance costs: 76 € / day
