Part of a limited series production released in 2017, the A.Lange & Söhne "Blue Series" was part of a selection of restyled models which all featured similar blue dials. The other emblematic models were the Lange 1 Daymatic, Saxonia, and Saxonia Automatic. The series took its interesting blue dial design from older, classical pieces like Lange's reference 101.027 from the 90's. Other than the dial color, the Lange 1 remains virtually unchanged, with its asymmetric dial design and carefully designed date windows, which were inspired by the Five-Minute Clock at Semper Opera House in Dresden.

Instantly recognizable, the dial lay out is visually well balanced thanks to the proportions, which were carefully calculated following the Golden Ratio. Inside, the watch houses the 2015 caliber L121.1, a manual wind movement with big date, hour, minute, and small seconds complications boasting a 72 hour power reserve. Furthermore, the balance-cock features the signature artistic flourish engraved by one of Lange’s master engravers.

While the series is not a limited edition, the Blue Series was produced in low numbers and as a one-off production, making it a rare and scarce variant of its kind. Preserved in pristine condition and coming with its original full set of accessories, the timepiece is a modern iteration of Lange's rich history and certainly an opportunity best not to be missed.