The Les Masters collection created by Confrerie Horlogere comprises timepieces equipped with sophisticated movements that appeared due to groundbreaking mechanical and engineering discoveries. One of the masterpieces, La Clef du Temps tourbillon watch, accommodates a hand-wound mechanical movement that offers a three-day power reserve.

The timepiece, conceived by Mathias Buttet, founder of Confrerie Horlogere, is limited to just 24 pieces, corresponding to 24 time zones. As for the price, a prototype of this watch fetched the second highest price at the Only Watch auction recently at USD410,000