Eurocopter Super Puma MK2

July 2012, this Longines pocket watch is in for cleaning and a new glass.

I sent an email to Longines and asked for informations about the watch and I got a super fast answer:

"Following your request, I have the pleasure to give you here below the information I found in our old hand-written registers :
 
The serial number 5064231 identifies a hunter pocket watch in Gold.
It is fitted with a Longines manufacture caliber 18.90Z that was first produced in 1928.
The "ABC" after the caliber means that your caliber is thinner than the normal one.
It was invoiced to Messrs.’ Terrasse, who were for many years our agent for Sweden, on the 31.03.1932."

NB on the case are the initials of Nils Bohn, the original owner of the watch.