François Chaille is an author. Passionate about art history, fashion, jewelry, and horology, he has published over a dozen works with Flammarion, including The Book of Ties, Cartier: Creative Writing , the three volumes of The Cartier Collection (Jewelry, Timepieces, and Precious Objects) , Audemars Piguet: Master Watchmaker Since 1875 , and Girard Perregaux . Historian and expert on fine watchmaking, Dominique Fléchon is the author of many specialist works, including Secrets of Vacheron Constantin and The Mastery of Time , both published by Flammarion.