Hal, No, it shouldn't have nothing to do with the belts, as they're the same as timing belts, or toothed belts, and would work the same as gear teeth. The accuracy will come from the balance wheel arrangement, and with all the jewels (bearings), one would think it would sure move free. However, keeping in mind they said they were ball bearings, I would say each uses at least four "jewel" balls to a bearing, and that is where the majority of them is used up. I would think that it all goes back to the balance wheel and the escapement, or type of, as to any accuracy issues, unless of course the belts do slip somehow, but they shouldn't. I didn't get a good look at the balance wheel to see what type of temperature compesation it used, if any.
Best, Will *********** REPLY SEPARATOR *********** On 7/10/2011 at 2:10 PM Hal Murray wrote: >omni...@gmail.com said: >> Then there is this little number... >> http://forums.watchnet.com/index.php?t=tree&goto=415170&rid=0 > >From their web page: > > The power reserve is 52 hours, and the watch is actually very accurate > at about plus or minus 4 seconds a day. > >4 seconds per day? I'd expected better from a very expensive watch. Are >belts nasty when it comes to keeping good time? > > > > >-- >These are my opinions, not necessarily my employer's. I hate spam. > > > > >_______________________________________________ >time-nuts mailing list -- time-nuts@febo.com >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there. > >__________ Information from ESET Smart Security, version of virus signature database 5851 (20110206) __________ > >The message was checked by ESET Smart Security. > >http://www.eset.com _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.