This Collection Excellence Platinum model, made entirely of 950 platinum – case, dial, clasp, and even strap stitching – is available in a limited edition of 50 copies. It combines two iconic complications of High Watchmaking: a functional one-button chronograph and a flawlessly executed tourbillon. The tourbillon carriage in the shape of a Maltese Cross at the 12 o’clock position is driven by an intermediate gear wheel, which allows you to see most of the mechanism. A tachymetric scale around the perimeter of the dial, complementing the railway-style minute counter, stylishly frames the power reserve indicator at 6 o’clock and the 45-minute counter at 3 o’clock.