SEAGULL TY2902 (ST1902) MECHANICAL CHRONOGRAPH MOVEMENT
This is a brand new, top quality 20-jewels Seagull TY2903 (ST1903) hand winding 30-min. chronograph movement. Power reserve approx. 42-hours. Glossy polished parts with blue steel screw and column wheel.
DIAMETER: 31.3mm
THICKNESS: 6.25mm
