The A. Lange & Söhne line-up at SIHH 2017 is half a dozen strong, and right at the very top sits the Tourbograph Perpetual “Pour le Mérite”, which builds on the first Tourbograph that was introduced in 2005. The new Tourbograph adds a perpetual calendar to the original combination of split-seconds chronograph, tourbillon regulator as well […]
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