Graham Watch Silverstone RS Supersprint 2STBC.B05A.K99. Precision is the key in racing. The Silverstone RS Supersprint features high level performance to become a hybrid of first class watch making and world beating motorsport. With a 1/8th second mirror graduation scale, you will be able to read the time without parallax error by aligning the central second hand on its own reflection on the circular mirror. With its 42 mm steel case, the Supersprint is the most energetic and self confident model of the Silverstone RS collection. With a new ergonomic case which consists of a 42 mm middle, the watch appears with a wider personality thanks to a 44 mm bezel. This double configuration enables a perfect match on every wrist. The main revolution with the Silverstone RS Supersprint is the presence of a mirror graduation around the dial. The use of the mirror is the professional solution to ensure exact reading. When the red chrono hand stops, you can read time on the 1/8th seconds scale thanks to the mirror. The second hand placed on top of its reflection will give an accurate measurement.