For sale two very rare crowns for some of the most famous Compax and Tricompax models by Universal Genève. .6mm Crown .Diameter : 6.0 mm (Use Winding Stem 1,2 mm) For UG Compax “Nina Rindt” Mark1 & Mark2 Ref. 885103/03 and UG Compax “Evil Nina” Mark1 & Mark2 Ref. 885103/01. It´s also the correct …