Edox Watch CO-1 Chronograph 10242 TIN BUIDN. When it comes to precision Edox watches are convinced that being as strict and meticulous as possible is well worth it. Because you will appreciate the quality and attention to detail. Every single part of an Edox watch is made to exact specifications with the lowest possible fabrication tolerances. Nevertheless: Assembly and regulation are still done by hand by skilled watchmakers. Edox has a long tradition of finding smart solutions for complex challenges.