This foamed-metal watch case was recently in the news [1] (though it's less exotic than the escapement inside it). 1: https://www.hodinkee.com/articles/zenith-

This foamed-metal watch case was recently in the news [1] (though it's less exotic than the escapement inside it). 1: https://www.hodinkee.com/articles/zenith-defy-lab-oscillator-introducing https://www.hodinkee.com/articles/zenith-defy-lab-oscillator...