Both can come with these two bezels, so, to avoid any confusion, the Lecoultre is not a WT only and the Jaeger Lecoultre is not a Tachymeter only, either. Here I would favor the Lecoultre, for its minimalistic signature. You? Best, Nicolas ...
But there were also a ¨diver¨bezel... (pic from the web). A local AD has one for sale in all original condition, I have been tempted as it has a beautiful size (40mm) and patina... ...