Excuse me, is the 6659 of Blancpain V series a perpetual calendar watch?

Yes, Blancpain V Series 6659 is a perpetual calendar watch, which means that you don't need to adjust the calendar display before 2 100. The hour scale of 6659 is hand-painted, and the day, date and month dials are also evenly distributed. The 6 o'clock position is the moon phase display function. There is also Blancpain's patented under-ear hidden regulator, which can be completed without tools, which is very convenient.