Product Description "Porsche Design" established in 1972 by Fernando Alexander Porsche designed a famous car Porsche 911. Its products are not limited to list watches, it also includes eyeglasses, writing instruments, fashion items. This "Monoblock Actuator Chronotimer Flyback" is a Chronograph that instantly resets to zero when the reset button is pressed while the Chronograph Chronograph operating, and starts re-measurement. Push buttons are eliminated from the case, and the Chronograph is operated with a monoblock rocker arm on the right side of the case. For the case and bracelet, you can feel the commitment unique to Porsche Design, which considered practicality first, even where you have adopted titanium coated with black carbide coating. 251 world limited.