Quote:
Originally Posted by HiBoost
That's a key issue with a watch that has a low amplitude at full wind, even though it keeps good time in that condition (e.g. mine). When my power reserve gets low, it crosses an amplitude threshold where the timing goes to complete crap. I've seen it go to -160 s/d in this situation. So this new amazing "70 hour power reserve" is kind of nonsense if I have to make sure it never uses more than 50 hours of it or else the timing drifts like crazy.
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And this is what most of us movement nerds spoke about the way Rolex tried to extend their power reserve with the 32 series movements. Their ultra thin single barrel method is more of a modification than a genuine solution to a usable 72 hour power reserve. Why did Rolex go against the well established and proven dual barrel mainspring???
Dual barrel mainsprings will blow a single barrel spring away in power reserve accuracy. Movements from Omega and Panerai will maintain a strong and consistent amplitude way into days of their power reserve yielding outstanding accuracy on day 3 of power reserve. Even if you don’t care about a 72 hour power reserve in your Rolex, you probably want it’s accuracy to not fall off at the 48 hour mark.