Portuguese Perpetual Calendar double moon phase
Are all moon phases correct? Are is there some deviation?
Regards
Portuguese Perpetual Calendar double moon phase
- 2 replies
- last reply by thekong 20 Nov 2017
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Apprentice -
MasterThe moon tends to be fairly consistent with timing of its phases. The IWC perpetual calendar with moon phase is only accurate for 577 years after which it may require an adjustment. A few Euros a month into a sinking fund should cover the cost of the adjustment which, sadly, must be done outside of the warranty period,
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ApprenticeI am also contemplating about a Big Pilot Perpetual Calendar.
I have heard stories that the moon phase on some samples could be off (comparing to the actual moon) by a couple of days.
But then, my question is whether the actual moon phase is consistent in all locations on the earth?
Thanks!