Tourbillon Perpetual Calendar | 720.025F | Platinum for-the-study The mechanism can be manually

The mechanism can be manually wound through the crown at twelve o'clock

first devised in the last decade of the 20th century

A "Transitional" Reference

in addition to a mesmerising guilloche pattern that curves around the dial from two different angles

Period correct white gold buckle

Tourbillon Perpetual Calendar | 720.025F | Platinum for-the-study The mechanism can be manuallyThis Tourbillon Perpetual Calendar* is a highly complicated time piece that marked the introduction of a tourbillon with an automatic movement into the A. Lange & Shne catalogue, and their first use of the instant jump calendar indication. Only 100 pieces were made in platinum. The watch marks a fascinating point in the history of modern Lange watches. This Tourbillon Perpetual Calendar reference 720. 025F was launched in 2012, introducing a number of