Langematik Perpetual - A Lange & Sohne
HARD TO BEAT UNTIL 2100
When the LANGEMATIK PERPETUAL was launched in 2001, it was the first mechanical wristwatch that combined a perpetual calendar with a Lange outsize date. Its calendar takes the different durations of the months as well as all leap years into account. Assuming the watch runs without interruption, a manual correction is only needed in 2100.