I'll bet the only time youy'll have seen this watch is in the PD book, if you've got a copy!!
This is the Deiter Rams designed Braun DW20 LCD from 1977. As it says in the title, only 2000 were made, making it a hard to find must for Rams collectors and watch collectors alike.
Working perfectly and in its original inner box, two small marks on the bottom left, not affecting the look of the watch at all, but it's got to be mentioned!
Time then day/date and light.
I think you could call this an understated stunner...
Size 35x35x8mm deep