he Silverstone Tourbillograph is an automatic column-wheel chronograph tourbillon. A Tourbillon. Not just any Tourbillon. It is an automatic one minute Tourbillon developed in the vein of the Graham DNA, with a powerful design and a rich technological content. The 48 components of its skeleton cage interlace in layers and have been reduced to an extreme weight of only 0.485 grams. This construction integrates the Tourbillon into the complex chronograph movement while using a large diameter balance wheel. Made exclusively for Graham by Manufacture La Joux-Perret, it is the result of a 4 year R&D program leading to two patents. Altogether, the engineering knowhow has lead to doing away with the intrinsic weaknesses of tourbillons. First its fragility. The reduced number of components, lightness and double-bridge construction guarantee stability and perfect rigidity, entitling it to be called a shockproof Tourbillon. Second, the sensitiveness to magnetism is also reduced through the systematic use of iron free components in the Tourbillon cage. The Tourbillograph calibre is equipped with a high quality chronometric escapement beating at 28,800 vph. This movement offers at the same time the beauty of one of the best see-through Tourbillon cages and the resistance of a military watch, having successfully passed the Chronofiable test, the gold standard in the watch industry.

Aesthetically, the Silverstone Tourbillograph Full Black is a sophisticated and classy racing instrument. The 48mm thin steel case is PVD-coated with black titanium carbide. So is the bezel. Its black dial and polished rhodiated numerals play with the light. Graham’s passion for refined details led them to decorate and blacken every single part of the movement with rhodium. The oscillating weight with a ceramic ball bearing wheel, the balance, the double bridge, the coq, are all black. A perfection even pushed to such details as having a fine regulating system with a micro metric screw on the balance wheel to optimize its adjustment and avoid variations. Even the column wheel alternates black and polished. Sometime visible, sometimes invisible. One minute Dr Jekyll, Mr Hyde the next. It’s all a question of perspective.