Universal Tri-Compax, Cal 481, 34mm case

Does any one have any suggestion as to how to source a seconds hand for a cal 481, 34mm case tri-compax? I realize that they are like trying to findhen's teeth but I thought I would ask. I own a 1944 stainless tri-compax example and tried in vain to find one for quite some time....any one have a suggestion short of trying to find a suitable donor (loathe to do this). Thanks everyone.