Quote:
Originally Posted by Devildog
What does appear to be coming out of all of this is that the movements have a fundamental design "weakness" which has arisen from the marketing pressure to produce 70 hour reserve. A weakness that is exacerbated by a lack of lubrication creating friction and or wear sufficient to reduce the amplitude to a level that timekeeping is significantly affected.
And that the chronology escapement was created by necessity, not advancement in design.
The question I have is that the Daytona has had a 72 hour power reserve for years. Presumably it has a larger barrel?
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Yes. The Daytona movement has a larger diameter because it must not fit into a 36 mm case...
So the barrel has much more volume, I guess...
Tom