The invention discloses a floating rotation tourbillion
mechanical watch which comprises a winding series, a basic series A, a needle setting series, a transition series B and a rotation series C. The basic series A comprises an initiative series, a display series and a transmission wheel series. The transition series B comprises a ball support part and a
planet wheel series. The rotation series C comprises a transmission wheel series and a rotation
escapement speed regulating mechanism. The winding series, the initiative series and the display series are connected in sequence. The needle setting series is connected with the display series. The display series is sequentially connected with the transmission wheel series included by the basic series A, the
planet wheel series and the ball support part which are included by the transition series B, and the transmission wheel series and the rotation
escapement speed regulating mechanism which are included by the rotation series C in a double-direction mode. The floating rotation tourbillion
mechanical watch has the advantages that due to the fact that a sun wheel is of a friction structure, a friction function is achieved through elastic deformation of a
leaf spring between a clamping plate and the sun wheel, a needle setting wheel series drives the sun wheel directly to adjust the position of a rotation support, stability is strong. In addition,
friction loss of contacted faces and rotation parts is reduced by the ball support structure, the structure is simple, and performance is stable.