The Tissot pocket watch collection is suprisingly vast. The Savonette T83.6.402.12 is one of them. It features a savonette-style case with a diameter of 49.40mm, housing a hand-wound movement with small seconds in the form of caliber 6498-1. The case is made of Stainless Steel. Earlier versions may have a brass case which is then plated in palladium.