The Opus 7 was manufactured in conjunction with Harry Winston and Andreas Strehler. The concept behind the Opus series of watches, which still runs today, is an independent manufacture collaborating with the giant Harry Winston on a cutting edge and highly limited wristwatch. The present Opus 7 follows the watch making philosophy of the independent watchmaker who created it and focuses on the movement and the quality of its execution. Composed of many wheels, the time is displayed in a very unique way. In order to see the hours, minutes and power reserve, one needs to press the crown once for minutes, a second time to view the hour and the third time to view the power reserve. This is a very ingenious way and upholds what everyone believes the Opus collaboration is all about. The present watch is a unique example set with baguette-cut diamonds and sapphires and is a one-of-a-kind piece for the first time offered at auction. Andreas Strehler began to be recognized by the masses in the horological world in 2006, when his Moser Perpetual One won the complicated watch prize and the Grand Prix de Geneve. In 2007 he successfully collaborated with Harry Winston for the design end execution of the Opus 7 that was made in a limited edition of 50 watches only.