Tourbillon Perpetual Calendar | 720.025F | Platinum for-the-study A "Transitional" Reference

A "Transitional" Reference

bezel and case edges provide a distinct contrast with the brushed surface of the case and bracelet

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

Having first developed the dual-time functionality for an earlier reference

The Toric Tourbillon exposes the movement through an open-worked dial and sapphire caseback

Tourbillon Perpetual Calendar | 720.025F | Platinum for-the-study A "Transitional" ReferenceThis 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