From 1955 until 1959 Moswitzer undergoes an apprenticeship as a toolmaker and started to paint during these works. From 1959 he attended the school for arts and crafts in Graz (graphic and sculpture and made his first works in wood and stone, wood-iron installations as well as sculpture from scrap metal). From 1961 this was followed by several trips to Paris, Italy and Spain.
His interest in a dynamisation of sculptures received new aspects, especially during his stay in Paris: sculptural works by Constantin Brancusi and Alberto Giacometti as well as paintings by Rothko and Pollock left a sustainable impression. In 1961/62, iron scraps and prefab parts were used as material for his sculptural designs, and from 1963 he creates column sculptures. In the same year he destroys most of his early works. In 1966 he received the award of the Theodor-Körner foundation. In 1969 his works were shown at the Wiener Secession and can still be seen at the Musée d` Art Moderne in Paris. In 1970 he designed cube sculptures, from the mid 1970s, on the one hand, he expanded the canon of forms, on the other hand he integrated new material (stainless steel, brass, plexi glass, non-ferrous metal and bronze fusions) in his design. In the same year, the artist represented Austria at the Biennial in Venice. At the beginning of the 1980s, he made numerous long-play records, tape recordings and videos.
In 1978 he received the honorary prize for fine arts from the Federal Ministry for education and art; in 1981 the prize of the City of Vienna and in 1987 the honorary prize for fine art of the Region of Styria. Since 1997 Moswitzer occupies himself with computer works, animation and experimental music. In 1998 he was awarded the Josef Krainer prize.
In Moswitzer’s work, the dynamisation of surfaces and spatial structures plays an important role. In the course of the years he developed his geometrical-abstract sculptures, drawings and photos with increasingly differentiated directions of movement in surface and space. The representation of movement in its geometric abstraction is as determining for the sculptures as their formal and material simplicity.
The artist has been internationally successful and has exhibited in places such as Budapest, Bolzano, Brussels, Lyon and New York.