It's my first chronograph and (to me) it's not just a chronograph... Is an Eterna Chronograph!
This watch in an amazing running condition ( Chronofunction is working as well ) has the Valjoux 71. As far as I known this movement is based on a 13 lines chrono, hand-winding movement, and breguet spiral. Used since 1914.

I really love it, now in my wrist I'm glad to share it with you in this amazing forum. I feel is my house. (My first watch forum)
This Eterna Chronograph is 18 k gold plated, its diameter without crown and pushers is 37,20 mm - from lug to lug is 43,40 mm - lugs are 20 mm.
I'm so happy because I own the watch, obviously (lol) but besides because I found a NOS blue alligator strap and to finish my good luck I have a 18k Eterna vintage buckle.

So, I will more than happy to read your comments and many thanks to all to give me the opportunity to share in this place.
All the best to you all
Alex