Audemars Piguet Royal Oak Selfwinding · Reference 15500ST
Audemars Piguet Royal Oak Selfwinding 15500ST
Known as Royal Oak Selfwinding 41mm
The 15500ST is the 41mm time-and-date Royal Oak that ran from 2019 to 2022, the third generation of the standard steel Royal Oak in the line that traces back to Gerald Genta's original 5402 from 1972. It replaced the long-running 15400ST and was itself replaced by the 15510ST. The full reference reads 15500ST.OO.1220ST followed by a dial suffix: .01 for blue, .02 for slate grey, .03 for black, .04 for silver-toned. It is the watch most people picture when they say Royal Oak: octagonal bezel with eight hexagonal white-gold screws, integrated tapered bracelet, Grande Tapisserie dial, and the applied AP monogram at six o'clock that AP dropped when the 15510 arrived. If you want the classic 41mm steel Royal Oak and you want it at a number below the current production model, the 15500 is the reference you are shopping for.
Produced: 2019 to 2022
In stock at Ultimate Diamond
3 pieces on the counter right now.
Specifications
- Case
- Stainless steel, 41mm diameter, 10.4mm thick, octagonal bezel with 8 hexagonal white-gold screws
- Water Resistance
- 50 meters
- Crystal
- Anti-reflective sapphire
- Caseback
- Sapphire display back
- Dial
- Grande Tapisserie pattern, applied AP monogram at 6 o'clock, date window at 3 o'clock; blue (.01), slate grey (.02), black (.03), or silver-toned (.04)
- Movement
- In-house automatic Calibre 4302
- Movement Details
- 257 parts, 32 jewels, 22K gold rotor
- Frequency
- 28,800 vph (4 Hz)
- Power Reserve
- 70 hours
- Functions
- Hours, minutes, center seconds, date
- Bracelet
- Integrated stainless steel Royal Oak bracelet with AP folding clasp
- Year Introduced
- 2019
- Year Discontinued
- 2022
Market & Value
The 15500ST is a superseded reference now, so it trades only on the secondary market; you will not walk into a boutique and buy one new. That is exactly why it is interesting to a buyer. When it was current, waiting lists ran years long and clean examples changed hands well into six figures at the 2021 to 2022 peak. That heat has cooled. As of mid-2026 we see the reference trading roughly in the high-$40,000s to high-$60,000s depending on dial, condition, and completeness of the set. Blue (.01) is the most requested dial and carries the strongest bid; black (.03) tends to sit just under it; grey (.02) and silver (.04) are thinner markets that move on the right buyer. A full set with box, papers, and both cards is worth a real premium over a watch-only piece, and a watch-only 15500 with no papers gets scrutinized hard on authenticity, which is where a dealer that actually knows the reference earns its keep. Against MSRP on the current 15510, the 15500 usually reads as the value play in the 41mm steel line: same case, same Calibre 4302, and the older AP-monogram dial that a lot of collectors actually prefer.
What to Know Before You Buy
Know the difference between this and the 15510 that replaced it, because it drives the price. The 15500 and 15510 share the same 41mm steel case, the same 10.4mm profile, and the exact same Calibre 4302 with its 70-hour power reserve, so mechanically you are not giving anything up. What changed on the 15510 is cosmetic: AP swapped the applied AP monogram at six for the full 'Audemars Piguet' signature under twelve, redid the tapisserie proportions and the markers, and fitted a slimmer bracelet that wears lighter. Whether that is an upgrade or a downgrade is a taste call, and plenty of buyers chase the 15500 specifically for the AP-monogram dial. On the watch itself, check the bracelet stretch and how many links are present, look hard at the case for polishing that has softened the brushed-and-polished edges the Royal Oak lives and dies by, and confirm the date wheel color matches the dial. The screws on the bezel are white gold and should be crisp. Papers and the correct AP warranty card matter more here than on most steel sports watches because the fakes on this reference are good.
Buying or selling a 15500ST?
We buy and sell the Royal Oak 15500ST every week at our counter at 19 West 47th Street in New York, and we have been on this block since 1959, so we know what a clean one looks like and what a doctored one looks like. If you are selling, bring it in or call and we will make you a real cash offer the same day, papers or no papers; we write the check, we do not quote you a chart and disappear. If you are buying, tell us the dial you want, blue, black, grey, or silver, and the budget, and we will source the right example with the set to match. Bring it in, call us, or request an offer and we will get you a number on your 15500 today.