One of my favorite vintage Longines 13 ZN Chronograph:
By: amanico : November 1st, 2017-16:53
I am not sure it is a ref 21 514, but I love some details a lot: Screw in case back, superb movement, big case ( 38 mm ) , and... The dial! What a dial! Under a crazed plexy, a pure marvel. Well, the hands aren't bad, either... Vintage Longines at its bes...