very rare vintage designer watch, watch manufactory Lederer/Blu S.A./Time Dimension TD-4'', design Hans Donner, 90's, like new, diameter 39mm, height 9mm, length 22cm, stainless steel case, numbered TD3-1064 on the back, sapphire case back, signed Hans Donner, automatic movement ETA 2892-2A, dial in form of 3 rotating discs, which were photolithographically coated and change optically depending on the incidence of light, original milanaise bracelet, hardly worn, extremely rare, some of these watches are in famous art & design museums, e.g. in New York and Vienna.e.g. in New York and Vienna, movement runs exactly