Powermatic 80 Explained: 80-Hour Reserve, Accuracy and the Silicium Versions
The silicon hairspring is what separates the Silicium versions from the standard ones. Until about a decade ago, a Swiss automatic under a thousand dollars ran for roughly forty hours off the wrist. Take it off on Friday evening and it had stopped by Sunday. The Powermatic 80 doubled that. Eighty hours means a watch […]
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