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LIMITED TO 150 UNITS
Cœur de Rubis (Heart of Ruby) surrounded by a Fume Platinum coated outer ring.
Pad printed Minute track and Y design in white Super-LumiNova® BGW9 lume (Emits blue light).
Diamond cut indexes and ring between the dial parts
Sartory-Billard reference : SB04E1RUB1
La Joux-Perret G101
Overused words like “rare” or “limited” fill the industry, but nature itself created the true rarity at the heart of this SB04-E. Ruby is an exceptionally uncommon stone, and it’s rarely used in watchmaking due to its cost and the challenge of cutting it to the desired half-millimeter thickness.
No two dials are identical, as each Ruby dial retains its unique character and natural imperfections. This individuality comes from the inherent rarity and organic formation of the stone, making each watch a singular creation.
This Ruby core is further enhanced by a platinum-plated outer ring, which features a sunburst texture and a subtle gradient around the edge. This design elevates the Ruby centerpiece, emphasizing its natural beauty and deep color while creating a striking visual contrast that enhances the watch’s overall elegance.
The ruby featured in our watches is a genuine gemstone, sourced responsibly from Tanzania, Africa, and presented in its natural form as a boulder.
Recognizable by its green external crust, the ruby boulder is expertly cut into slabs and crafted into dials in Germany, just one hour from our workshop.
This ensures complete traceability and guarantees that the process is carried out under ethical, high-quality conditions, far removed from mass-production facilities or exploitative practices.