Audemars Piguet 1930s Moonphase Triple Calendars

quattro · 2025-09-06T08:16:20Z

Explore Audemars Piguet's rare 1920s-1930s Moonphase Triple Calendars. Discover the scarcity of calibers 10GHSM and 10HPVM in these vintage AP timepieces.

quattro

WPS member · Audemars Piguet forum

15 replies1994 views13 photos

Emmanuel, known as quattro on WatchProSite, presents a captivating look into Audemars Piguet's rare non-perpetual calendar timepieces from 1924 to 1967. His detailed post highlights the scarcity and historical significance of these early calendar watches, offering a crucial perspective for collectors beyond the brand's more contemporary offerings. This article delves into the specific calibers and unique examples that define this often-overlooked era of AP's horological heritage.

This is the kind of AP watch I would love to own...

The total output for non-perpetual calendar timepieces by Audemars Piguet between 1924 and 1967 amounts to an incredibly meagre 176 examples.

This production is split into two “phases”, implying different movements:

The first phase, exemplified in this post, goes from 1924 to 1954 with the vast majority of this production employing cal. 10GHSM, with one exception at the very beginning: the first calendar watch, shown below, employs cal. 10HPVM.

Then the second phase, not exemplified in this post, switches to cal. 9/10RSQ.

Have a great week-end!

Best, Emmanuel

PALE YELLOW GOLD EXAMPLE FROM 1927 BELONGING TO MATTHEW BAIN

25.5 x 28.5 mm case, manual cal. 10GHSM

As Matthew Bain states in his dedicated article, this example is "one of only 48 early pieces in a rectangular case with the coveted 10GHSM caliber, featuring a triple calendar, moon phases, and age of the moon (complete calendar). Cased in pale yellow gold — a rarity, as most were white gold — accounting even for the non-rectangular cases, only 35 of these were ever made in this metal."

credit: Matthew Bain Inc.

WHITE GOLD EXAMPLE MADE FOR "A L'EMERAUDE" CIRCA 1925

Same dimensions and caliber as above.

credit: @watchesbylogan (1), @the_vintage_lounge (2) & Phillips

PLATINUM EXAMPLE SOLD BY VAN CLEEF & ARPELS, PARIS 1927

Same dimensions and caliber as above.

credit: @montanariauro

EXAMPLE FROM 1930 DISPLAYED AT THE AUDEMARS PIGUET "BEYOND WATCHMAKING" EXHIBITION IN TOKYO IN 2019

Probably same as above too.

credit: watch-media-online.com

FIRST AUDEMARS PIGUET CALENDAR WRISTWATCH FROM 1924

Movement and case no. 27819. Caliber 10HPVM. 18-carat white gold case, 14-carat white gold dial.

Engraving: L. Steward Barr, USA, 1924.

Movement manufactured in 1921 and watch sold in 1924 to Gübelin, Lucerne.

Audemars Piguet Heritage, inventory no. 1768.

credit: AP Chronicles

WONDERFUL VIDEO SHOWING HOW AP's HERITAGE DEPARTMENT RESTORES SUCH WATCHES

How to restore a vintage watch? / AUDEMARS PIGUET

Key Points from the Discussion

The post introduces many to a previously unseen side of Audemars Piguet, distinct from the brand's more contemporary Royal Oak and Code 11.59 collections.
There is a desire among some collectors for Audemars Piguet to reimagine these vintage calendar designs for modern production, rather than focusing solely on variations of existing popular models.
The author notes that despite the appeal of these vintage pieces, the Royal Oak and Code 11.59 currently dominate Audemars Piguet's production and market focus.
The restoration video shared by the author resonates with personal experiences, highlighting the emotional connection collectors have to the preservation of vintage timepieces.

The Discussion

Marc Obermann

Sep 6, 2025

Now those and some of the Ultra thin watches from the 60-70's are AP's I would love to own, hadn't ever seen these types of AP's before. I don't know but how about instead of maybe the hundredth RO they could re imagine these for the modern times. Thanks for your post and fresh information for me. Marc

quattro

Sep 6, 2025

But, unfortunately, the RO and the Code are kings for now... Have a great week-end. Best, Emmanuel

LarsG

Sep 14, 2025

That was 10 min well spend. Splendid and amazing history and craftmanship at work. Enjoy!

quattro

Sep 14, 2025

While watching it, I had in mind my grand-father's JLC, which is being entirely restored at the moment... I hope the result will be great. Best, Emmanuel

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Audemars Piguet 1930s Moonphase Triple Calendars

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