In the angularly redesigned Clayson range of the late 1960s, there were four models, of which the M 133 was not brought to Finland. The M 140 Armada was introduced already in 1962 and was one of the largest combines of its time. In the M122 introduced for the year 1968, the diameter of the threshing reel was 46 cm, while in the other models it was 60 cm. The engines in all models in Finland were Fords. Clayson's cutting platform was of a very short type and was lightened hydropneumatically. Compared to earlier models, the engines were more powerful and the grain tanks were larger. The sieves and straw walkers were also enlarged.

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