The magnificent industrial skeleton work and the engraving marry industrial perfection with the art of watchmaking. In mastering the delicate technique of skeleton work, ETA is making it more affordable, but no less precious. And the 2894-2 chronograph calibre with a column wheel, which forms the basis of this project, has undergone a complete metamorphosis: a skeleton chronograph module and basic movement, chamfered edges, surfaces decorated with fine gold-plated engravings and, noblesse oblige, a blued column wheel and screws.