Eberhard & Co Watch 8 Jours Grande Taille 21027.7. Eberhard & Co. watches boast over a century of research and passion. Since 1887 the Swiss brand has been synonymous with excellence and innovation, which are represented in precious timepieces with high technical content that have marked important stages, the pocket chronograph, the first wrist chronograph, right up to dual time watches. Creations that stand out for their quality and style and that express the values of great Swiss tradition.