Over the last few years, A. Lange & Söhne has been making its popular 1815 collection more of a focus, introducing several exceptional models, like the insane Tourbograph Perpetual Pour le Merite unveiled at SIHH 2017. While that model may have stolen the spotlight (and with good reason), today we’re giving some much needed hands-on attention to another great watch presented by the brand at the show; the A. Lange & Söhne 1815 Annual Calendar, which is the brand’s most accessible “complication watch”.