Greubel Forsey presents the final editions of the Balancier Convexe S², marking the close of a five-year movement project. Limited to 11 pieces each, the releases include a black ceramic with 5N red gold and a white ceramic version, both housed in the 41.5?mm Convexe case. Built around the 30° inclined balance wheel, the hand-wound calibre combines openness, three-dimensionality, and technical precision across 301 components, offering a 72-hour power reserve. Titanium bridges and plates are frosted and hand-finished with polished bevels. The black/red gold edition emphasizes contrast and depth, while the white ceramic edition highlights light, structure, and architectural clarity, concluding the S² chapter in 2026.