The tremolo device can be used in stringed musical instruments, and more particularly in electric guitars. It provides a simplified construction allowing easier usage and improved sustain, wherein, in the front portion of the rear string saddle (5) an opening (5f) is formed, which axis is nonparallel to and does not intersect the saddle assembly shaft (7) axis and also does not intersect the string (29) axis. In the opening (5f) the fine tuning spring (6) is disposed, reaching the opening bottom with one end and with the other—the back wall of the front string saddle (4).