MILITARY chronograph extreme rare Prototype of TUTIMA 6645-12-194-8642 in steel, Switzerland/Germany around 1980, self winding, pressed down case with sunk pushers, at the sides screwed lugs, luminous-dial probably for navy intended, black indices & - hands, rhodium plated movement calibre Valjoux 7750, 25 jewels, precision adjustment, diameter approx. 44 mm, condition 2-3, property of a collector the watch was not introduced in this shape