Rolex Hooded Bubbleback ref 6064

Rolex bubbleback is always one of my favourite vintage watch.  This is a Rolex Hooded bubbleback from the 1930s-40s. As a watch collector, we all realised that the Bubblebacks were important for the brand. They not only paved the way for decades of self-winding Oyster Perpetual models, perhaps what Rolex is the most known for, but they also demonstrate how sometimes, even a giant like Rolex had to find work-arounds for their most advanced technological innovations. In the case of the Bubbleback, form clearly followed function. 

Comparison between a normal vs hooded Bubbleback