When you call a watch a “tank” it can mean a few things. It can first mean a sort of square cased watch done in the style of Cartier Tank timepieces. That is not this watch. It can also mean a larger watch that is durable and can take a lot of abuse. That may be this watch. Finally, it can mean a watch that is a tank. That is this watch. Azimuth finally released their SP-1 Landship watch that has been in the making for a while now.