Between 1981 and 1982, Nati defended his title five times in matches against Vicente Rodriguez, John Feeney, Jean-Jacques Souris, Luis De La Sagra, and Esteban Eguia.
Between 1984 and 1987 Nati racked up 14 consecutive victories to get another shot at the European Featherweight title, which he won against Marc Amand in two rounds.
After six more victories, he had a World Boxing Council Super Bantamweight title opportunity against Daniel Zaragoza, but was knocked out in the 5th round.
[1] He rebounded from the loss, challenging World Boxing Organization Super Bantamweight champion Kenny Mitchell and winning by disqualification.
[2] Nati lost in his first defense of the WBO title to Puerto Rican Orlando Fernandez, and eventually retired in 1991.