Discussion
As andy_s says - its a pretty close run thing between Zenith/Movado and Breitling/Hamilton/Heuer/Dubois Depraz - so I don't think you can say unambiguously which was the "first". But the El P certainly was a complete integrated movement unlike the B/H/H/DD modular and it was definitely the first to run at 36,000 vph, allowing (in theory) timing to 1/10 sec.
My two both have the handwind version of the movement, which does allow them to be a little slimmer (though there's not much in it) and yes, they do both run at 36,000.
My two both have the handwind version of the movement, which does allow them to be a little slimmer (though there's not much in it) and yes, they do both run at 36,000.
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