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Patek Philippe

Syncing up the chrono sweep hand

 

Am i correct in thinking the chrono sweep hand when activated is only synced up

to the chrono monocounter and not the main dail's hour and minute hand? if so how

is it possible to tell the true accuracy of the main dial's timekeeping i.e. how many seconds it's

losing or gaining per day? Is it easy/possible to sync the chrono sweep hand with the main dial's timekeeping?

I hope my query makes sense! apologies

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