This H. Moser and Cie. Streamliner Tourbillon reference 6814-1200 brings the brand's most fluid case design into an openworked register. Its self-winding movement centers on a flying tourbillon, the complication given full prominence by the skeleton dial and the watch's pared-back architecture. Rather than treating transparency as display alone, this reference uses it to sharpen the contrast between the Streamliner's soft exterior lines and the mechanical tension within. In stainless steel, the case measures 40mm across and 12.3mm thick, a size that keeps the watch balanced even as the movement takes visual priority. The skeleton dial turns the caliber into the composition, with bridges and negative space doing the work a conventional surface would otherwise carry. For a collector drawn to Moser at its most contemporary, this is the Streamliner pushed furthest toward pure mechanism, without giving up the restraint that keeps the line distinct.