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Old 18 June 2009, 03:23 AM   #4
Tools
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Join Date: May 2007
Real Name: Larry
Location: Mojave Desert
Watch: GMT's
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It's difficult to compare a Speedy to a GMT or a Sub.. Those are COSC time-pieces, and the Speedy is not. They also operate at 28,800 BPH and the Speedy is around 19,000 BPH.

That said, I have never had a recent Speedy that is as far off as yours..

I presently have a Speedmaster with the Lemania 1861 movement, and it performs within a couple of seconds per 24 hrs, and also, since it is a slightly slower beat than the Rolex, it is more responsive to position adjustments at night, and I can easily keep it within a second or two per day...

Most modern movements are capable of operating within the COSC standard, not because there is a standard, but because most people demand it from an expensive time-piece. Any recent Speedy should be able to be regulated to stay within a few seconds daily..
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