The second pair of sibling master watchmakers, Bart & Tim Grönefeld are two of the most fascinating Dutch Independent Watchmakers. Having grown up in the business and having had several generations precede them in the watch business in Holland, they decided to head to Switzerland to hone their skills. Working for several of the finest watchmakers in Switzerland, lastly with the masters at Renaud & Papi, they specialized in two particular areas of complicated watchmaking, that of Tourbillons and Minute Repeaters. These skills allowed them to return to their native Holland and set up their company, and create extra-ordinary watches under their own name.
Their first watch was the mighty Minute Repeater Tourbillon GTM-06, followed up by the superb completely in-house One Hertz with independent dead seconds. 2014 at Baselworld they revealed the amazing Parallax Tourbillon. A flying tourbillon with a small offset time dial and central sweep seconds.