I remember that I acquired this watch in March 2019 at an AD in Hong Kong. It was recommended by Ben Hodinkee founder in a video as a top buy for a perpetual calendar, which was how I got to know this model. The adjustment of date/month/day/moon phase is easy with just one button (all synchronized), so no need to look at the moon phase. I paired a blue strap with this watch to go with the blue color in the moon phase display, so it is a bit less formal. The accuracy of my watch is -1.9 seconds per day, measured in actual wear over 66 days, which is fantastic. One interesting thing is that the movement is very likely similar to the ones used by IWC perpetual calendars, as the locations of sub dials and year are exactly the same. Lastly, it is amazing to see a perpetual calendar in an ultra thin movement and very rare to be in stainless steel case.