Ultra-complicated Movement ST8002

The ST8002 builds upon the Seagull ST8000 off-center tourbillon movement by integrating an automatic winding function. The automatic winding mechanism adopts a universal design, ensuring maturity and stability. The design of the automatic hammer torque and mainspring torque presents a challenging aspect. Seagull ST8002 leads the Chinese market in automatic winding tourbillon watches. The addition of the automatic winding function to the manual winding tourbillon movement increases the value of the tourbillon watch and enhances user convenience in wearing and usage.