This unique piece from Armin Strom, is inspired by the design of the Armin Strom Tourbillon Gravity Fire —full 18K rose gold piece— but fitted with a very unique case construction. With a middle case in 18K rose gold and a blackened PVD stainless steel case back and bezel, this unique piece comes in a perfect color combination and is a one off watch from the masters of skeletonization out of Bern.