Montblanc Tourbillon Cylindrique Geosphères Vasco da Gama combines a tourbillon with a triple time zone indicator. The global world-time indication is graphically represented by the two blue globes on the dial.

Montblanc Tourbillon Cylindrique Geosphères Vasco da Gama combines a tourbillon with a triple time zone indicator. The global world-time indication is graphically represented by the two blue globes on the dial.