It only appeared in a variation of the Victorinox 58mm Classic model, replacing the nail file. The special Classic variation was only sold as a part of the Victorinox I.N.OX. Paracord Watch Bracelet and Strap Change Tool set (that included a military style watch strap); or as a part of a Victorinox watch set.
At least two versions of the push pin tool exist. The newer version has a slimmer profile.