Had owned the blue dial one for about 2 years.but sold it last year. No complaints about reliability and accuracy. Don't expect anything less from an El Primero anyway. It is amazing to me that there are only 8 parts in the annual calendar mechanism invented by Ludwig Oeschlin. Reason why I sold it is I am too lazy to set the calendar since I don't wear the same watch for more than a few days. Can be a pain to set and worse if you exceed the date you are setting.
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