The Quinting watches claim to be the worlds first transparent watches. This transparent watch is quite a mystery since there appears to be no visible means of a movement to drive the hands, very intriguing and clever.
The quartz movement is hidden inside the case around the transparent dial. The hands appear to operate with a mind of their own, but they are actually connected to the movement motors by a series of sapphire crystal discs.
Price:$6,500
Source: Link
Omega did the world’s first transparent watch by the concept of quartz disks back in 1981 with the La Magique
Thats interesting thanks for pointing that out.