. . . "Wristwatches" by Kahlert, Mühe, and Brunner, there are good photos of a UG 218-9 movement above a Buren cal 1000 A, which is described as 'parallel to the Universal cal 215: 33 jewel anchor movement, 12 1/2 lignes, monometallic screw balance, self-compensating flat hairspring, Incabloc shock resistance, indirect central second, height of movement 4.20 mm; automatic winding in both directions of the planetary rotor'. Thanks so much for the historical background, Tony - there's no mention of the legal dispute between Buren and UG in the text. Cordially, Art