He amassed La Liga totals of 144 games and 101 goals, with Athletic Bilbao and Betis.

After helping Deportivo Alavés to the semi-finals of the 1928 Copa del Rey he was signed by neighbouring Athletic Bilbao to be part of their team in the newly-formed national league.

He went on win two La Liga titles and four consecutive domestic cups, notably forming an attacking partnership with Bata, Guillermo Gorostiza, José Iraragorri, Chirri II and Lafuente.

[6] After leaving Seville, Unamuno's career was interrupted by the Spanish Civil War, and he subsequently returned to Athletic.

In the 1939–40 campaign he netted 20 times – and Gorostiza added 16 – en route to being crowned the competition's Pichichi, helping the side to third place;[7] he retired in 1942, aged 33.