GL could stand for Grand Luxe, but anyway, this solid Particularly Robust 516 model from Tissot has a very nice deeply set dark blue dial. The hour indexes are prominently hanging on an elevated ring above the dial, with the red seconds hand just missing them on its round. The automatic moment is fully serviced and the original Tissot bracelet has plenty of links, making it an easy fit to even the larger wrists. The case is 36x38mm and is 12,7mm thick. It is not perfect, with plenty of scratches to the case and bracelet, and it also has some faded spots on the dial visible with a loupe, but this is a charmer of a vintage that can be used every day! It dates from ca 1970.