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Archer
··Omega Qualified WatchmakerMost people, Omega employees included, won't have the timing specs of each caliber memorized. -4 to +6 is just the industry standard COSC rate that they're quoting (even though it's incorrect for the 1861/3 since they're not chronometers).
Yes clearly. But even Omega's COSC watches don't use -4 to +6 as the tolerance for average rate...again this is why I said you need to take what they tell you with a grain of salt...a large one at that.
