Up for sale is an incredibly rare, factory-original (OEM) electric dashboard clock.  This highly unique instrument features a factory 12-hour/24-hour hybrid military-style layout. The inner dial face is stenciled with blue 24-hour markers (24, 15, 18, 21) directly alongside the bold, crisp white standard numerals (12, 3, 6, 9).
 
It comes complete with its original vivid orange sweeping second hand and the long, flexible mechanical adjustment set-stem extending from the side of the housing. This is a holy grail option piece for late-70s GM square-body truck and van restorers looking to add a truly unique, conversation-starting factory gauge to their dashboard.