Obvious from the caseback, the oscillating mass on the movement is delicately engraved. It can be created from 18-karat gold and decorated by hand by using a barley grain sample, finished by guilloche Crafted by Swiss watchmaker Tissot, the T-Classic Gentleman has each of the Main attributes of an awesome https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/