Romain Gauthier celebrates its tenth anniversary with three ten-piece limited editions of its Prestige HMS, with platinum case and blue dial, white gold case and anthracite dial, or red gold case and cream dial. The second timepiece in the watchmaker's repertoire, it features off-centre hours and minutes, small seconds and a partially open dial, with an in-house movement. So as to preserve the perfect roundness of the case, the crown is set not at the side but fits seamlessly into the back. Both movement and dial are finished with a rarely observed striving for perfection, shown for example in the Clous de Paris guillochage that frames the hour and minute dial.