F.P. Journe timepieces are highly sought after by collectors due to their limited production and high level of craftmanship, but the watches from the Ruthenium Collection hold a special place in the brand's historical offerings. The collection was created as expressions of Francois-Paul Journe's creativity and were exclusively produced for select longstanding clients. The collection consists of five models manufactured between 2002 and 2005, each limited to a production run of 99 pieces.

The Octa Jour/Nuit was introduced in 2002 as part of the Ruthenium Collection. It combines the day and night indication with the Octa movement and has only ever been available within this unique collection. What sets this collection apart is the use of ruthenium on the dial and movement, a rare precious metal from the platinum group of the periodic table. Ruthenium possesses exceptional durability, being resistant to scratches and oxidation. While it is not commonly used in watches, it finds applications in aerospace engineering and electronics due to its robust composition. Aesthetically, ruthenium exhibits a distinctive smokey grey sheen and a high-shine finish, imparting a sleek and stylish appearance to the watch.

This model holds a special significance as it represents a tangible piece of the brand's history. Notably, all the watches from the Ruthenium Collection represent some of the last pieces to feature brass movements before F.P. Journe transitioned to pink gold movements. Together with all the accompanying accessories, it is an opportunity not to be missed to acquire one of the most exclusive F.P. Journe watches made.