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Opened July 1999, zOwie is the Internet's first and longest running discussion forum dedicated to Omega brand watches.

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Omega Seamaster accuracy--too good to be true?

I recently purchased an Omega Seamaster De Ville from an eBay member. Unfortunately, it was running horribly slow, despite the seller's claim for "precise time." But the seller was very willing to take the watch back and have it adjusted, no charge for the service or return shipping.

Well, the watch went from losing 72 seconds per day to gaining 1 second per day. I kid you NOT! I have time tested the watch for several days and it is keeping consistent time. The movement is 550 calibre, which is fine rated but definitely not chronometer rated. I had the case back removed by a local jeweler and the movement is indeed what it should be.

How is this possible? According to the Chronocentric documentation, my watch is on par with a modern day certified chronometer! Now, I must imagine that there will be variations with introduced temperature and humidity changes. But still... I find this to be quite remarkable.

Now, are there any suggestions I should follow to help stave off the gradual loss of accuracy that will eventually occur? Thanks for your time and advice...

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