Handcrafted in a hand-painted case with a cuboidal form featuring soft, rounded corners, the HAUTLENCE RETROVISION ‘47 mimics the look of the marbled green and white Bakelite of the historical broadcast receiver’s case. On the left side of the case, is the “speaker” grill, under which the wearer can make out a 60-second flying tourbillon whirling away. The case back is modeled after the back of the Model 5A5 radio receiver, with a specifically shaped plate engraved with the brand name and serial number. The round sapphire display back features some general information in the same vein as the radio and offers a view of the ED20-SP00 automatic caliber, which provides a power reserve of 72 hours.