Star clusters provide a unique and powerful probe useful for studying the star formation histories of galaxies. In particular, the ages, metallicities and kinematics of star clusters bear the imprint of the galaxy formation process. M33 is the only nearby late-type spiral galaxy and it provides a notable connection between the cluster populations of earlier-type spirals and the numerous, nearby later-type dwarf galaxies. GTC/OSIRIS provides us, for the first time, with adequate velocity precision to reach the faint end of the luminosity function and perform a detailed spectroscopic study. We will present here high velocity precision of 20 faint star clusters using GTC/OSIRIS as well as 80 brighter star clusters using WHT/WYFFOS. We will discuss kinematic properties of the star cluster system in M33 based on the largest sample to-date. In combination with our photometric study as well as structural parameter analysis, we will provide relevant information of the star formation history and evolution of the galaxy.