Audemars Piguet Royal Oak 15500ST blue dial steel watch
Audemars Piguet·Ref. 15500ST·Stainless steel

AP Royal Oak 15500ST

$43,750Range: $42,090 $45,018mediumUpdated Sep 17, 2026 · Model v1.1

Executive Summary

SignalHold

Fair Value

$43,750

30-Day

90-Day

-0.3%

Confidence

62/100

Analysis

Stable pricing trend3 independent data sourcesStrong liquidity (91 comps)

Algorithmic signal based on public market data. Not financial advice.

Fair Value

$43,750

91 comps

Ask Median

$43,750

91 listings

Sold Median

0 results

Confidence

Medium

62/100

Market Trend

-0.3%

90 days

Momentum

Stable

Market Intelligence

Market Liquidity

High

128 comps across 3 sources

Last Observation

Jul 27, 2026

Most recent data point

Data Sources

Phillips
6 auctions6
Chrono24
121 listings121
firstdibs
1 listing1

Valuation History

How this value is calculated

The LuxMetrix fair value blends two independent signals: what sellers are asking on marketplaces (weighted 40%) and what buyers have actually paid at auction (weighted 60%). Outliers are removed using IQR filtering, and a confidence score reflects data quality.

Read the full methodology →

Frequently asked questions

How much is a AP Royal Oak 15500ST worth?

As of Sep 17, 2026, the AP Royal Oak 15500ST (Ref. 15500ST) has a LuxMetrix fair market value of $43,750, typically ranging $42,090–$45,018. The estimate blends 91 live data points — 91 marketplace listings and 0 auction results — normalized to USD.

Is the Audemars Piguet Royal Oak a good investment?

Over the last 90 days the AP Royal Oak 15500ST's fair value has moved -0.3%. LuxMetrix tracks its value daily from real auction and marketplace data so you can judge momentum rather than guess; current confidence in the estimate is rated medium.

How many Audemars Piguet Royal Oak watches are for sale?

LuxMetrix is currently tracking 91 marketplace listings and 0 recent auction results for the AP Royal Oak 15500ST (Ref. 15500ST).

How does LuxMetrix value the Royal Oak?

Each fair value blends what sellers ask on marketplaces (weighted 40%) with what buyers actually paid at auction (weighted 60%). Outliers are removed via IQR filtering, prices are normalized to USD, and a confidence score reflects data quality. See luxmetrix.com/methodology.