Who did it first Zenith or Seiko???

In my opinion one of the best chronos in terms of wearability, history and design, but I question was Zenith really el primero?

Yes,they were.

This is intuitively obvious to even the most casual observer.

1969 first high performance chronometer of the type.

And Rolex used the El Primero movement in the Daytona (that they rebranded the 4030) until 2000.

Balanced

1969 first high performance chronometer of the type.

But I believe Seiko had the crown chronograph in 1964, so doesn't that make them the first?

er1khung

But I believe Seiko had the crown chronograph in 1964, so doesn't that make them the first?

Not the same animal.

Longines started the ball rolling if mind serves me right.

Zenith was the first on January 10, 1969, followed by the the next to announce was the Chronomatic group of collaborators, on 3 March, which included Breitling, Buren, Hamilton, Heuer and Dubois-Depraz. There is some question as to Seiko, which was presumed 3rd in this race. Seiko鈥檚 6139 was officially launched in Japan in the May of 1969, because they are now finding watches with February 1969 production dates, so they may have actually been 2nd to the party.

Longines 13.33Z in 1913? Breitling in 1915?

Mare0104

Longines 13.33Z in 1913? Breitling in 1915?

I have been reading and I believe you are right. Longines was indeed the first. Why there are no articles about it?

er1khung

I have been reading and I believe you are right. Longines was indeed the first. Why there are no articles about it?

Probably bad marketing strategy in the past. Bit Breitlimg is more known as chrono brand but only due to pushers like we use them today. And all brands that claim some firsts communicate what suits them ( first chrono, first auto chrono, first chrono with one/two pushers, first column wheel chrono... )