Since 2008, Bart and Tim, ‘The Horological Brothers’, have produced a variety of unique mechanisms including a tourbillon minute repeater, a jumping seconds, a flying tourbillon with hacking seconds, etc. The 1941 Grönograaf is the latest creation to be conceived in Oldenzaal. It is a classical chronograph, but consistent with the Grönefeld ethos, it incorporates several ingenious details. Unlike mass-produced cam-actuated chronographs, the 1941 Grönograaf features a classical configuration, namely a column-wheel and lateral coupling, a combination synonymous with high-end watchmaking. The calibre G-04 is a symphony of 408 parts and a wonderful exemplar of no-compromise watchmaking. The ‘Premiere Edition’ of the 1941 Grönograaf will be encased in tantalum and limited to just 25 pieces. Thereafter, Grönefeld will release 188 pieces in stainless steel.