The early models of Heuer's up / down chronographs are powered by the Venus 170 movement (12.5 ligne), and have the "Heuer" shield below the top recorder. Measurement across the dial is 32 millimeters.
The early models of Heuer's up / down chronographs are powered by the Venus 170 movement (12.5 ligne), and have the "Heuer" shield below the top recorder. Measurement across the dial is 32 millimeters.