Highly sought after french longuard chain designed as a flat M style link, with, at the bottom, a hand clenched into a fist, holding a loop to hang a watch. The wrist of the hand is wearing a very fancy cuff with frills and swags.
The chain is marked with the eagles head, plus two other marks which I can't decipher.
 
The chain is 18 carat gold and is 49.5" long and weighs 24.6g
 
It is a very yellow gold.
 
The chain is not perfect, it has some kinks (see pics) but still looks great on.