Just saw this on Omega's website, and I'd never seen one before... Ref 3992.50.06 Speedmaster X-33 Special Team Edition America's Cup This special model was initially only produced as a series of twelve, ten of which were presented in 2002 to the defenders of the America's Cup 2003 (sponsored by Omega). Its most noticeable characteristic: no hands; it is primarily intended for timing regattas. The weird part is the fact that its an X-33 that has had its hands removed and is purely digital, I'm guessing the reason we haven't seen them is that only the team ever received them.
A watch without hands isn't a watch, it's a display worn on the wrist with a computer chip programmed to show the time instead of some other function. Just like donut with no hole is not a donut, it's a danish - you eat both, they're similar, but not the same.