"If you build it, they will come." It's the age-old quote about watchmaking, wrapped somewhat curiously in a sentimental movie about baseball, if I'm interpreting things right. A. Lange & Söhne is finally having its overdue moment among collectors for doing what it's always done: making beautiful, mechanically impressive watches with a more traditional, high-touch approach. Sticking with the baseball analogy, it's the Milwaukee Brewers playing old-school small ball and getting into the World Series. Nostalgia hits hard, and the one constant through all the years, Ray, has been watchmaking—or something like that.

And yet, when you get down to it, something has been missing from the Lange lineup—a gap for true deep-cut collectors who begged for a certain something that disappeared from the catalog in the late 2000s. People yearned for bracelets, with the word Wellendorff hanging in the air long after the brand ended its partnership with the Pforzheim jewelry maker.…