Audemars Piguet Caliber 9/10 RSQ Vintage Guide

quattro · 2026-05-27T21:37:14Z

Discover the Audemars Piguet Caliber 9/10 RSQ through a visual guide of vintage watches, including Top Hat and tank styles from 1930s-1950s.

quattro

WPS member · Audemars Piguet forum

7 replies434 views59 photos

Emmanuel's passion for the Audemars Piguet Caliber 9/10 RSQ shines through in this curated photographic overview. This article meticulously showcases the diverse timepieces that housed this distinctive shaped, manual-winding movement, offering collectors a visual feast and deeper appreciation for its historical applications. His compilation highlights the aesthetic versatility and enduring appeal of this significant Audemars Piguet caliber.

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When I saw this photo of the Audemars Piguet caliber 9/10 RSQ posted on Instagram by Josh aka @joshrankin, my heart skipped a beat.

credit: @joshrankin

Indeed, I've been collecting photos of watches featuring this wonderful shaped and manual-winding caliber for months now.

The time has come to show them: here they are.

A/ YELLOW GOLD - 1946

B/ YELLOW GOLD - 1953

According to Stetz & Co.:

“1953 was a special year for Audemars Piguet as it marked the arrival of design legend Gerald Genta.

Genta went on to design every Audemars Piguet wristwatch produced from 1953 until the release of the Royal Oak two decades later.”

credit: Stetz & Co.

C/ YELLOW GOLOD CASE WITH PINK GOLD “CHEVRONS” ON THE LUGS - 1940s

I find the cas and two-tone gold lugs of this model fascinating.

credit: 1stDibs

D/ TANK-STYLE YELLOW GOLD WATCH - 1930s

credit: lorologiese.com

E/ THREE “TOP HAT” EXAMPLES

The three following examples feature a case reminiscent of the Patek Philippe ref. 1450, nicknamed “Top Hat”: Celebrating the ugly duckling

1/ TEXTURED LUGS AND DOULBE SIGNED DIAL “TIFFANY & CO.”

credit: Lawrence Fine Art Auctioneers Ltd, Crewkerne

2/ YELLOW GOLD - 1950s

credit: mimandcroket

3/ PINK ON PINK - Circa 1950-1960

credit: Antiquorum

F/ FOUR EXAMPLES WITH MOVEMENT AND DIAL ONLY

Example 1

credit: Max Petrenko

Example 2

credit: Gisbert A. Joseph Watches

Example 3

credit: Arlex Clocks

Example 4

credit: partimeart

G/ ONE EXAMPLE OF ROUND CALIBER 9/10 RS

Interestingly, Audemars Piguet did a round version of the same movement: caliber 9/10 RS (instead of “RSQ”).

Yellow Gold - 1949

credit: Stetz & Co.

Personally, I absolutely love not only the architecture of the 9/10 RSQ caliber, with its “S”-shaped central bridge, but also the watches that house it.

What about you?

Thanks for reading.

Best, Emmanuel

Key Points from the Discussion

The Audemars Piguet 'C' model with two-tone gold lugs bears a resemblance to the Patek Philippe Ref. 2471, both potentially made by the same Geneva casemaker, Markowski.
The 'Top Hat' examples within the Audemars Piguet Caliber 9/10 RSQ collection are particularly appealing to some collectors.
The caliber's design evokes comparisons to the Jaeger-LeCoultre Reverso movement, suggesting a shared aesthetic or functional influence in shaped movements.
The importance of anglage (chamfering) in movement finishing is highlighted, indicating an appreciation for meticulous craftsmanship.

The Discussion

AuHavrePro

May 27, 2026

Lovely. the caliber, predictably, reminds me of the Reverso a great deal....

quattro

May 27, 2026

Indeed! Very nice architecture too.

But no sharp angles. Best, Emmanuel

AuHavrePro

May 27, 2026

Alas, you are correct my friend, anglage is not to be underestimated 🙏🙂‍↕️

KMII

May 28, 2026

They are lovely 👌🏻👍🏻🙌🏻

Especially the Top Hat ones appeal to me 👌🏻👍🏻

quattro

May 28, 2026

They appeal to me very much too!

Best, Emmanuel

golden hands

May 28, 2026

A -for me

C- reminds me of the PP REF 2471 with cal 9-90 both 2471 and AP-'C' are made by the same casemaker from Geneva-Markowski

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Audemars Piguet Caliber 9/10 RSQ Vintage Guide

Key Points from the Discussion

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