Walter Lange was a horological titan, equal parts technical maestro and visionary businessman. When the Berlin Wall came down, he seized on the opportunity to resurrect his great grandfather’s watch company; within a decade of relaunching, the firm was turning out instant-classic designs and developing superfine mechanicals in-house. The felicitously-named Tribute to Walter Lange celebrates the man, who died last year, by debuting an all-new movement. It’s a hand-wound, 36-jewel beauty, featuring an independent, stoppable seconds function—one of Lange’s favorite complications. The watch is available in pink, yellow, or white gold, limited to 145 pieces total and retailed at $47,000 each. The stainless steel example seen here? It’s a one-off made for charity, set to be auctioned by Phillips in Geneva on May 12.