i saw this advertised last night on another forum. its a bit of fun and i couldnt resist it. something i think Cen will like and anyone with a teaching/maths background. even my wife liked it enough to consider wearing it when she finally starts teaching.
this is the 'Art IQ' by Rolf Sachs, a not hugely limited, ltd edition of 999. looks pretty much based on the standard Fortis Fleiger Auto to me.

Specs:
Automatic ETA 2824-2
40mm case
Date
Incabloc shock absorber
PVD stainless steel case
Screwdown steel caseback
Sapphire crystal
200m water resistant
Green dial with chalk mathematical figures
Black pilot leather strap
Have box and paperwork
will update more when it arrives.
Graham
nice of you to always mentioned my name when something weird and nobody wants come up
. I don't like the date cut-off, and already have last year pilot edition. On a watch diet now.
entertaining and educational too...!!! Great fun piece.
Andy.
LOL!
Good one, Graham, but you won't convince me to love Maths with this watch...LOL
Best.
Nicolas
The beach was always calling me and my friends. Ok guys,
I have to break it to you.....I HAVE THE WATCH
Ok, some wrong information.
The mathematical symbols are not luminous, and only the hands are.It runs on a simple ETA movement.
As the for black case of the watch, it isn't DLC or any tough vicker materials, but simply coated stainless steel.I have scratched mine against a bookcase.
This watch really gets the gals staring.
If you still can obtain it, just go for it. 999 pieces and thats not really a limited edition but a limited production.
i know its not the highest of technology, just a bit of a fun piece like a lot of mine. at least the hands are luminous which is more than most of the watches i own. for some reason the watches i buy seem not to bother with luminous hands or numerals, but once my glasses are off i cant read the time anyway
for my wife to want to wear it, it must be fun.
Graham