Apart from the bezel, crown, and crown lock lever, the 44mm case of the Luminor Marina DMLS is made by 3D printing with a high power laser and titanium powder. The case is formed 30 microns at a time, but the process allows the near-final shape to be printed rather than milled. If you're deep into Panerai link and want a special titanium Luminor with a stealthy appeal, this may be the ticket.