This is a 1950's Tissot Jumbo Calatrava. The case measures 36mm which was extremely large for a watch from that period. 

This watch is powered by a 15 jewel manual wind movement. The seconds are recorded in a collectible sub second register at the 6 o'clock position.

The case is chromed with a stainless steel back.

This watch has been serviced and is running well.

It will come with a one year warranty.