BRM - Lightest automatic chronographs ever made

Model MK44S Lime Green: case made of Makrolon (material use for the lateral windshield of the race car). Lugs, pushers and crown are made of one single bloc of titanium grade 5 all CNC cutting. Movement is a 7753 Valjoux base and hardly modified. Our goals was to create the lightest automatic chronograph. We succeed: 48.8 gr.!

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