Quote:
Originally Posted by chris russell
Omega did have some reliability and other related issues with the 2500 movements, partly because they incorporated the 2-layer variant of the Coaxial escapement in order to fit it into the base ETA 2892. The more ideal 3-layer CoAx escapement is used in the 8500 movement, which in itself was designed more along the lines of the Rolex approach with larger bearing surfaces and thicker gear-wheels for better long-term reliability. So far as I know, the 8500 has been performing admirably. In my experience it's the only mechanical movement that is as long-term consistent and accurate as the Rolex movements, both the 4130 and the 3130 Series.
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I don't doubt the potential of the cal. 8500 at all, but I've already seen a good few come back to be repaired under warranty. Of the ones we've sent back, the two movements that seem to be having problems at present are the 8500 and 3313
