It is really tough to get the specs and when you order at Marco, they do not have a clue of what they are selling (by the way this is a good shop
The difficulty is the following, it is a relay coil which is less thick than the common relay coil. when activated it attracts the metallic plate. This plate ends with a kind of arm that releases a drop down target (from down to up position).
The original coil is a Zaccaria D355 S750, on the internet the only part available with this spec is a common coil working with a plunger and thicker than the relay I am looking for. See picture.
D355 corresponds to AWG 27. I found a WMS M1-27-700 at Marco which is a bank reset coil. If these is no diode I will add it. The issue is now that this coil operates normally with 24v. It was not written on MArco's site and I found it by chance on a list of coil's on the internet.
If someone can advise what replacement coil, still on the market, I could you use it would be helpful