sergio
[Panerai Moderator]
5742
I've just checked on the Official Panerai Website...
the case back of the 682 is...SOLID. 
42mm PAM682
This is my first Panerai since 2014. I always wanted a submersible but 44-47mm is too big for me. When i heard they are releasing a 42mm sub I wanted it. I wanted to own it but didn’t rush out to get it. Well today was the day! This fit is perfection! Ver...
I've just checked on the Official Panerai Website...
the case back of the 682 is...SOLID.
Here are some reviews from reputable sites. All display case backs. So they changed it i guess but why?
Hands-On: The Panerai Luminor Submersible 1950 3 Days Automatic Acciaio 42mm
A small mystery...
since the pictures on the official Panerai website show a solid caseback, I can only conclude that the pictures in the web are NOT accurate and the model they refer to, it's not a 682 (it wouldn't be the first time that happens). If they produced it with ...