The Horological Brothers are proud of their heritage as well as the nation they call home, the Netherlands. Inspired by the Dutch ‘Delta Works’, Bart and Tim introduced their first sports utility watch: the 1969 DeltaWorks. The model is designed to cope with the perils of water ingress and shocks while still upholding the elevated standards of horology and traditional craftsmanship that are synonymous with the Grönefeld name.