The White Tortoise model is fitted with the same 14-karat gold bi-color nib as other Souveran M400/405 models. Though the cap on earlier models had a weakness near the lip and a painted logo on top, the defect was fixed on these later models, which are appointed with a 24-karat gold-plated finial. The white piston knob is ringed in gold plated trim, as is the cap, which also features the signature pelican beak pocket clip.