An old topic that was once of interest, is the anecdotal connection between Panerai and Minerva. Here are some pictures to demonstrate.
Here is a chronograph timer for a detonation device which was made by Panerai and branded “Mare Nostrum”. The case BTW is very nice, made of nickel silver (German silver) and with a enamel dial.
The movement, unmarked, is a Minerva caliber 19/14:
Hope someone finds this interesting J
Cheers
Asi



