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 have conceived their first sports utility watch, the aptly named 1969 DeltaWorks which also references the year Bart was born. 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. When designing this watch, Bart & Tim wanted to produce a model that indulged purists with a remarkable choice of colours and styles. With sapphire crystals front and back, the 1969 DeltaWorks is 12.5mm thick and 53mm lug to lug. All three dial versions have applied luminous markers and matching hands, with an Arabic 12 marker and a small seconds display at six on the dial. Water resistance is 100 meters with a screw-down crown.