The Replica TAG Heuer Monaco Reference 1133B is powered by Caliber 11 chronograph, one of the first automatic chronograph movements ever introduced. 6139. Although the chronograph movement is very important in the history of watchmaking, it is functional and worry-free.

The steel lever and spring of the chronograph mechanism are processed by straight grain and chamfering, the screw head is polished on a plane, the gear is circularly run-in, and so on. Even the countersinks of the jewelry and screws are polished.

But the remake of the movement is not just aesthetic. The number of jewels has tripled because three wear-resistant ruby ​​bearings have been installed in the Tag Heuer Replica mechanism instead of metal bearings, which will extend the life of the movement in the coming decades.

The chronograph bridge was replaced with a new bridge with a significantly thicker thickness to accommodate the elegant, Art Nouveau carvings completed by hand, and then filled with black paint.

In order to show off all the work done by the movement, a porthole was cut out on the back cover of the case and fitted with a sapphire crystal. The crystal on the front is original acrylic resin. In the process, there is no loss, because the TAG Heuer Monaco Replica Watch steel dial coming out of the case will be included in the watch.