The difference with these watches is that once the back lid is opened the movement of the watch becomes visible. These pockets watches can also be suitable to the different sports or activates and engraved on.
Half Double Hunter Pocket Watches
These pocket watches are a combination of the double hunter and the half hunter watches. It has the features of the double hunter with the front and back hinged lid which fully opens.
However, these pocket watches incorporate the half hunter aspect of the window on the front lid, so you can view the time and protect the watch face.