Audemars Piguet 'Luminary' Reference Guide

quattro · 2025-08-15T13:46:18Z

Explore the Audemars Piguet 'Luminary' Ultra-Thin Perpetual Calendar ref. 26586BC-OO-1240BC-99. Discover its light blue dial, ultra-thin caliber 5133, and collector insights.

quattro

WPS member · Audemars Piguet forum

21 replies2642 views26 photos

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.

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Named ‘Luminary’ 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: @Pristine-Comfort1555, @horology_ancienne & wristcheck

A few wrist shots.

credit: wrist aficionado, @horology_ancienne & bachmann & scher

And, as final images, the '@wristaficionado guide to the Royal Oak Perpetual Calendar Ultra-Thin':

credit: @audemarsclub

Thanks for reading.

Best, Emmanuel

Key Points from the Discussion

The brushed finish on the light blue dial is a key aesthetic element that perfectly complements the watch's design.
Despite its exceptional engineering as an ultra-thin perpetual calendar, the 'Luminary' is also noted for its extreme rarity, being a limited edition of only 25 pieces.
The original author, quattro, expresses a personal preference for the dark blue dial variant of the ultra-thin perpetual calendar, housed in a titanium/platinum case, highlighting the diversity within the collection.

The Discussion

mdg

Aug 15, 2025

A really amazing watch...

quattro

Aug 15, 2025

Yes, it looks quite nice and it's technically very well done.

Best, Emmanuel

quattro

Aug 15, 2025

Eye-catching indeed.

Best, Emmanuel