[1] After training as a teacher Büchel taught in Balzers from 1931 to 1935 and in Triesen from 1935 to 1945.
Büchel founded the Liechtenstein section of the Swiss health and accident insurance Konkordia in 1932.
[1] Büchel entered politics as a member of the Patriotic Union and as an editor of the Liechtensteiner Vaterland from 1938 to 1939 and again from 1941 to 1943.
[1] After the death of Ferdinand Nigg 13 July 1957 Büchel was appointed Deputy Prime Minister of Liechtenstein under Alexander Frick.
After Frick's resignation on 16 July 1962 Büchel also served as deputy under Gerard Batliner until 1965.