Description

The time is told by four concentric digits which wrap around the center of the display. 
The right-hand side of the digit is at the top, slightly left of center, and the left-hand side at the other end of the ring, slightly right of center. 
The digits are read from outside in - the outer two digits are the hours and the inner two are the minutes.
The digits are hidden in plain view and look cryptic to those unfamiliar with it, but will be clear as day to the initiated.

Time displayed in 12 or 24 hour mode, depending on watch settings.
  
Version 2 supports color and round Pebbles.  It requires firmware version 3.8+.
Configuration options allow choice of number colors and white or black backgrounds.   

Screenshots show:  
  02:58, 09:36, 14:45

Design created by Peter Fletcher, from UK, and originally appeared on the Tokyoflash Design Studio.   This watchface is published with the designer's permission, and sanctioned by Tokyoflash.   

The original design can be found here: 
http://blog.tokyoflash.com/2013/01/03/digital-warp-lcd-watch-replicates-a-black-hole-on-your-wrist/