This iconic work of Aztec art proudly adorns the new X-TREM-1. This timepiece including the "Stone of the Sun" in relief, made of solid gold entirely hand-engraved, will be offered as a Unique Piece at the SIAR 2020. Driven as ever by a determination to present avant-garde timepieces, 5N red gold and black grade 5 PVD titanium were the metals chosen to make the case of this new version of the X-TREM-1 Azteca.