My latest extravagance is this unbranded Chronographe Suisse watch. It works well, and has a very clean gold coloured dial. The movement is unsigned, but looks most like a Landeron 47 to me. In which case, it would be from the late 1930s (according to Ranfft: 1937 first chronograph with cam switching just shortly produced predecessor of the Landeron-48 family).
But I would welcome a second opinion.