Hublot Big Bang 41mm Cappuccino

I hope you guys can help me out here. I recently received a very old Seamaster from my mother who purchased it for my grandfather brand-new in the late 1940s. I have done a lot of looking around and have not found any information or pictures that match this particular watch. It has a cracked crystal and is definitely not in great shape and has not been touched in any way that I can tell. I did take it to a jeweler and he said that it appeared to be authentic. Unfortunately I don't know how ........

I have a Y serial SS Sub Date. I had it for about 3 years. Sold a P serial before this one and regretted it, so that's why I got another one. I have a HUGE itch to get a Sub No Date COSC version. I have a SS Daytona white dial, so I am used to having a watch without a date. I think I have finally gotten over the fact that the Sub ND does not have SEL. I prefer SEL for the more solid look and feel. I hear that the non-SEL bracelets are actually more comfortable than the SEL bracelets. I can handl........