Audemars Piguet Royal Oak 37mm
The 37 mm Royal Oak sits between the 34 mm and the 41 mm in Audemars Piguet’s Royal Oak Selfwinding line. This page gathers every 37 mm Royal Oak we carry: the current Selfwinding 15550, which replaced the 15450 in 2022, the diamond-set 15551, the fully snow-set 15552, the openworked Double Balance Wheel and the Selfwinding Flying Tourbillon Extra-Thin, in steel, pink, white and yellow gold and Frosted Gold.
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Audemars Piguet Royal Oak 37mm Prices
At Watch My Diamonds, Audemars Piguet Royal Oak 37mm watches range from $41,999 to $518,647 across 16 priced listings.
The range covers every watch on this page, including pieces we have already sold. Watches listed as price on request are in stock: tell us which one you want and we will quote a current price. Audemars Piguet’s US retail price for the steel 15550 is $30,400; the retail price of every current 37 mm reference is in the table below.
Royal Oak 37 mm References and Retail Prices
These are the current 37 mm Royal Oak references, with the US retail price shown on audemarspiguet.com on October 16, 2026. Most have the “Grande Tapisserie” dial, Audemars Piguet’s pattern of small raised squares.
| Reference | Case and dial | US retail |
|---|---|---|
| 15550ST.OO.1356ST.06 | Stainless steel, “Bleu Nuit, Nuage 50” dial | $30,400 |
| 15550ST.OO.1356ST.07 | Stainless steel, grey dial | $30,400 |
| 15550ST.OO.1356ST.08 | Stainless steel, light blue dial | $30,400 |
| 15550BA.OO.1356BA.01 | 18-carat yellow gold, turquoise dial | $75,700 |
| 15550BA.GG.1356BA.01 | Frosted Gold: hammered 18-carat yellow gold, smoked yellow gold-toned sunburst dial | $81,600 |
| 15551ST.ZZ.1356ST.04 | Stainless steel, diamond-set bezel, light blue dial | $37,400 |
| 15551ST.ZZ.1356ST.05 | Stainless steel, diamond-set bezel, “Bleu Nuit, Nuage 50” dial | $37,400 |
| 15551ST.ZZ.1356ST.06 | Stainless steel, diamond-set bezel, grey dial | $37,400 |
| 15551OR.ZZ.1356OR.04 | 18-carat pink gold, diamond-set bezel, silver-toned dial | $78,200 |
| 15551OR.ZZ.1356OR.05 | 18-carat pink gold, diamond-set bezel, “Bleu Nuit, Nuage 50” dial | $78,200 |
| 15551OR.ZZ.1356OR.06 | 18-carat pink gold, diamond-set bezel, khaki green dial | $78,200 |
| 15551BC.ZZ.D405CR.01 | 18-carat white gold, case and bezel set with diamonds, green dial, green alligator strap | $81,200 |
| 15551OR.ZS.D344CR.01 | 18-carat pink gold, diamond-set case, bezel set with graded blue sapphires, light blue dial, alligator strap | $81,200 |
| 15551BC.ZZ.1356BC.01 | 18-carat white gold, bezel of 32 baguette-cut diamonds, smoked blue dial with baguette diamond hour markers | On request |
| 15552BC.ZZ.1358BC.01 | 18-carat white gold, case, dial and bracelet snow-set with diamonds | On request |
| 15552OR.ZZ.1358OR.01 | 18-carat pink gold, case, dial and bracelet snow-set with diamonds | On request |
| 15466BC.GG.1259BC.01 | Double Balance Wheel Openworked, Frosted Gold: hammered 18-carat white gold | $113,600 |
| 15467BC.OO.1256BC.01 | Double Balance Wheel Openworked, 18-carat white gold, light blue inner bezel | $111,500 |
| 15467OR.OO.1256OR.01 | Double Balance Wheel Openworked, 18-carat pink gold, rhodium-toned openworked dial | $102,400 |
| 15467OR.OO.1256OR.02 | Double Balance Wheel Openworked, 18-carat pink gold, purple inner bezel | $111,500 |
| 26660ST.OO.1356ST.02 | Selfwinding Flying Tourbillon Extra-Thin, stainless steel, plum “Petite Tapisserie” dial | On request |
| 26660BC.ZZ.1356BC.01 | Selfwinding Flying Tourbillon Extra-Thin, 18-carat white gold, smoked blue dial with baguette diamond hour markers | On request |
15450 vs 15550: Two Generations of the 37 mm
The 15550 replaced the 15450 in 2022, the year of the Royal Oak’s 50th anniversary. The case is still 37 mm across, but almost everything around it changed: a new movement, a thinner case with slightly wider bevels along its edge, a more tapered and lighter bracelet, and a cleaner dial.
| 15450 | 15550 | |
|---|---|---|
| Movement | Calibre 3120 | Calibre 5900 |
| Frequency | 3 Hz, 21,600 vibrations per hour | 4 Hz, 28,800 vibrations per hour |
| Power reserve | 60 hours | 60 hours |
| Jewels | 40 | 29 |
| Thickness in steel | 9.8 mm | 9.1 mm |
| Water resistance | 50 m | 50 m |
| Bracelet code | 1256 | 1356 |
| Dial | “AP” initials at 12 o’clock, “Automatic” at 6 o’clock | Both lines of text removed; the signature at 12 o’clock is applied gold |
What to Check Before Buying a Royal Oak 37 mm
- The full reference against the papers. Versions can differ only in the suffix, such as the grey and the light blue steel 15550, so check that the reference on the warranty card matches the watch.
- The generation. The dial tells you at a glance: the “AP” initials at 12 o’clock and “Automatic” at six mean the earlier 15450 family, with the calibre 3120.
- Factory diamonds. In the references above, ZZ marks a diamond-set watch, ZS diamonds with a sapphire-set bezel, GG the Frosted Gold finish and OO a plain watch. Diamonds on a watch whose papers say OO are a reason to ask questions.
- The finishing. The Royal Oak alternates brushed and polished surfaces on the case, bezel and bracelet. Heavy polishing softens those edges, so look for crisp lines between the two finishes, above all on the wider bevels of the 15550.
- Straps. The 15551 on an alligator strap closes with an 18-carat gold AP folding clasp set with diamonds; check that the clasp is present and matches the case metal.
- The warranty card. Audemars Piguet’s warranty runs five years for watches bought from its authorized network since January 1, 2017, so the purchase date on the card matters.
Every watch we sell is inspected and authenticated in house before it ships.
Audemars Piguet Royal Oak 37mm FAQs
What is the retail price of the Audemars Piguet Royal Oak 37 mm?
In the United States, the steel 15550 lists for $30,400 and the steel 15551 with a diamond bezel for $37,400, as of October 2026. In gold, the 15550 starts at $75,700, and the Double Balance Wheel Openworked runs from $102,400 to $113,600. The baguette-set 15551BC, the snow-set 15552 and the Flying Tourbillon are priced on request.
What is the difference between the Royal Oak 15450 and the 15550?
The 15550 replaced the 15450 in 2022. It uses the calibre 5900 at 4 Hz in place of the calibre 3120 at 3 Hz, its steel case is 9.1 mm thick instead of 9.8 mm, and its dial drops the AP initials and the word Automatic. Both have a 60-hour power reserve and are water-resistant to 50 m.
How thick is the Royal Oak 37 mm?
9.1 mm for the current 15550 in steel and most versions of the 15551; the earlier 15450 is 9.8 mm. The yellow gold 15550 with a turquoise dial is 9.3 mm, the Double Balance Wheel Openworked 10 mm and the Flying Tourbillon Extra-Thin 8.1 mm.
What movement does the Royal Oak 37 mm use?
The current 15550 uses the calibre 5900, as does the diamond-bezel 15551: a self-winding Audemars Piguet movement with 29 jewels, a frequency of 4 Hz and a 60-hour power reserve, showing the hours, minutes, center seconds and date. The snow-set 15552 uses the calibre 5909, without the date. The earlier 15450 uses the calibre 3120.
Is the Royal Oak 37 mm a men’s or a women’s watch?
It is worn by both. At 37 mm it sits between the 34 mm, made for smaller wrists, and the 41 mm.
How water-resistant is the Royal Oak 37 mm?
50 m on most versions. The snow-set 15552 and the diamond-set Double Balance Wheel 15469 on a strap are water-resistant to 20 m.