Born in Buenos Aires, Lecchi started working in Argentine cinema in 1979, as a second assistant director to Hugo Sofovich in the three films he directed that year.

Lecchi established himself as a prolific film director in the 90s, directing The Salt in the Wound (El Dedo en la Llaga) (1996), the critically acclaimed Secretos compartidos (1998) and Operación Fangio (1998), and working with Argentine A-list actors Darío Grandinetti, Víctor Laplace, and Pinti.

A year later he directed Déjala correr, starring Nicolás Cabré, Pablo Rago and Julieta Díaz.

On the same year, he created the TV series Epitafios along fellow director Jorge Nisco, a 13-episode mini-series starring Julio Chávez, Paola Krum and Cecilia Roth.

Lecchi has recently directed his ninth feature film, Una Estrella y dos cafés, which premiered 2006 and reunited the protagonists of Nueces para el amor, Pauls and Gil.