Emmanuel, known as quattro on WatchProSite, presents an exquisite look at the Audemars Piguet Ultra-Thin Perpetual Calendar ref. 26586BC-OO-1240BC-99, affectionately dubbed 'Luminary.' His detailed post, rich with high-quality imagery, offers an intimate exploration of this limited-edition timepiece. This article synthesizes community insights, enhancing quattro's original work by providing additional context and collector perspectives on this remarkable reference.
Named โLuminaryโ because of its bright light blue dial, the Audemars Piguet Ultra thin Perpetual Calendar ref. 26586BC-OO-1240BC-99 is an interpretation of the RD2 released in 2023 as a limited edition of 25 pieces.
The white gold case measures 41 x 6,2 mm and the dial has a light blue color with a brushed finish.

The
subdials have a very subtle
circular pattern.

And the
photo-realistic moon phase is set on an
aventurine disc.
credit: @kevincureau
At
6,2 mm of thickness, the watch is really
very thin, especially for a perpetual calendar.

credit: @wristiconyc (1-2) & wristcheck (3-4)The watch is powered by
automatic caliber 5133.
credit: wristcheck
The bracelet has a regular double deployant clasp.
credit: wristcheck
But the watch was also delivered with two straps: a light blue fabric one with contrasting stitching and a dark blue leather one also with contrasting stitching, each matching a color of the dial.


credit: @horology_ancienne
The watch had its
special presentation box.
credit: @audemarsclub
Thanks for reading.
Best, Emmanuel