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Re: Planet Ocean Accuracy re-visited

: Which do you guys feel will end up the most
: accurate thru daily use...The 300 M GMT, GMT
: Co-Axial, or the Planet Ocean?

Since each and every mechanical watch is different, there is NO WAY to predict whether the watch that YOU end up with will be more or less accurate than a watch with a different movement.

That being said, if I had to go out on a limb, I would predict that the co-axial movements in the Planet Ocean and the Bond GMT will produce the greater long term accuracy. After all, this is what the co-axial escapement was designed to do. By producing less friction and reducing the amount of lubrication required, the co-axial allows the watch to run more efficiently and with less lubricant to "gum up". The Planet Ocean and the newer Bond GMT movements also run at a slower beat rate than the 1120 movement in the standard GMT. This gives the watch a longer power reserve and doesn't force the movement to work as hard.

So, from a purely scientific standpoint, the co-axials SHOULD be the best timekeepers. However, you can't make conclusions without hard data to back them up, and the co-axial hasn't been around long enough to make any definitive statements.

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