Audemars Piguet Serial Number Lookup
Identify the approximate production year of your Audemars Piguet watch from its serial number, or decode a reference number to discover the model family and case material.
Where to find your serial number: On most AP watches the serial number is engraved on the caseback. It is purely numeric, typically 5\u20137 digits. Because Audemars Piguet produces far fewer watches per year than Rolex or Omega, serials are much lower \u2014 the entire brand history totals under 1.2 million watches. Do not confuse the serial with the reference number (e.g., 15202ST.OO.1240ST.01), which contains letters and dots.
Enter your Audemars Piguet serial number (e.g., 300000, 850000). Serials are purely numeric, typically 5\u20137 digits. Note: AP serials are much lower than Rolex or Omega as AP produces far fewer watches per year.
Popular Audemars Piguet Reference Numbers
A selection of well-known AP references with their decoded descriptions. Use the decoder tool above for any reference not listed here.
| Reference | Description |
|---|---|
| 15202ST.OO.1240ST.01 | Royal Oak "Jumbo" 39mm, Steel, Silver "Grande Tapisserie" Dial |
| 15202ST.OO.1240ST.08 | Royal Oak "Jumbo" 39mm, Steel, Slate Grey Dial |
| 15500ST.OO.1220ST.01 | Royal Oak 41mm, Steel, Blue "Grande Tapisserie" Dial |
| 15500ST.OO.1220ST.030 | Royal Oak 41mm, Steel, Smoked Blue Dial |
| 15500OR.OO.1220OR.01 | Royal Oak 41mm, 18k Rose Gold, Chocolate Dial |
| 15450ST.OO.1236ST.01 | Royal Oak Selfwinding 37mm, Steel, Blue Dial |
| 26240ST.OO.1320ST.02 | Royal Oak Chronograph 41mm, Steel, Grey Dial |
| 26320ST.OO.1220ST.030 | Royal Oak Offshore Chronograph 42mm, Steel, Blue Dial |
| 26480TI.OO.A027CA.01 | Royal Oak Offshore Chronograph 43mm, Titanium, Black Dial |
| 15720ST.OO.A002CA.01 | Royal Oak Offshore Diver 42mm, Steel, Blue Dial |
| 15710ST.OO.A002CA.01 | Royal Oak Offshore Diver 42mm, Steel, Blue Dial (prev gen) |
| 15210BC.OO.A002KB.01 | CODE 11.59 Selfwinding 41mm, White Gold, Blue Dial |
| 26393BC.OO.A321CR.01 | CODE 11.59 Chronograph 41mm, White Gold, Grey Dial |
| 26240SK.OO.1320SK.01 | Royal Oak Chronograph 41mm, Skeleton Dial, Steel |
Serial Number Year Range Guide
Audemars Piguet has used a sequential numeric serial system since ~1892. Ranges are listed newest first. Because AP is a small manufacture, serial numbers remain well below one million for most of the brand's history.
| Serial Range | Approximate Years |
|---|---|
| 1,000,001–1,150,000 | 2021–2024 |
| 930,001–1,000,000 | 2016–2020 |
| 870,001–930,000 | 2011–2015 |
| 810,001–870,000 | 2006–2010 |
| 735,001–810,000 | 2001–2005 |
| 650,001–735,000 | 1996–2000 |
| 550,001–650,000 | 1991–1995 |
| 450,001–550,000 | 1986–1990 |
| 350,001–450,000 | 1981–1985 |
| 265,001–350,000 | 1976–1980 |
| 210,001–265,000 | 1971–1975 |
| 130,001–210,000 | 1961–1970 |
| 90,001–130,000 | 1951–1960 |
| 65,001–90,000 | 1941–1950 |
| 45,001–65,000 | 1931–1940 |
| 25,001–45,000 | 1921–1930 |
| 10,001–25,000 | 1911–1920 |
| 3,001–10,000 | 1901–1910 |
| 1–3,000 | 1892–1900 |
Reference Number Decoder Guide
Audemars Piguet references follow the structure: [5-digit model][material].OO.[bracelet ref].[dial variant]. For example, 15202ST.OO.1240ST.01 breaks down as 15202 (Royal Oak Jumbo 39mm) | ST (Stainless Steel) | OO (standard lug style) | 1240ST (bracelet reference) | 01 (dial variant). The 5-digit model number and 2-letter material code together identify any specific AP configuration.
Case Material Codes
| Code | Material |
|---|---|
| ST | Stainless Steel |
| RG | 18k Rose Gold |
| WG | 18k White Gold |
| YG | 18k Yellow Gold |
| OR | 18k Yellow Gold |
| PL | Platinum |
| TI | Titanium |
| CA | Black Ceramic |
| CB | Blue Ceramic |
| FO | Forged Carbon |
| BO | Bronze |
| AB | Ceramic |
| IO | Ceramic |
| SS | Stainless Steel |
Model Families (5-digit Reference)
| Reference | Model |
|---|---|
| 14790 | Royal Oak (vintage) |
| 14800 | Royal Oak Quartz |
| 15010 | Royal Oak Chronograph (vintage) |
| 15120 | Jules Audemars (vintage) |
| 15160 | Millenary Chronograph |
| 15180 | Jules Audemars Selfwinding |
| 15202 | Royal Oak "Jumbo" Selfwinding 39mm |
| 15210 | CODE 11.59 Selfwinding |
| 15300 | Royal Oak Selfwinding 39mm |
| 15310 | CODE 11.59 Selfwinding 38mm |
| 15350 | Millenary |
| 15400 | Royal Oak Selfwinding 41mm |
| 15450 | Royal Oak Selfwinding 37mm |
| 15500 | Royal Oak Selfwinding 41mm |
| 15550 | Royal Oak Selfwinding 41mm |
| 15703 | Royal Oak Offshore Diver |
| 15710 | Royal Oak Offshore Diver |
| 15720 | Royal Oak Offshore Diver |
| 25721 | Royal Oak Offshore (1st generation) |
| 25860 | Royal Oak Chronograph |
| 25960 | Royal Oak Chronograph |
| 25996 | Jules Audemars Tourbillon |
| 26020 | Royal Oak Offshore (1st generation) |
| 26094 | Jules Audemars Grande Complication |
| 26150 | Millenary Tourbillon |
| 26240 | Royal Oak Chronograph |
| 26320 | Royal Oak Offshore Chronograph |
| 26330 | Royal Oak Offshore Chronograph |
| 26393 | CODE 11.59 Chronograph |
| 26397 | CODE 11.59 Tourbillon |
| 26400 | Royal Oak Offshore "End of Days" |
| 26401 | Royal Oak Offshore "Survivor" |
| 26420 | Royal Oak Offshore Chronograph |
| 26470 | Royal Oak Offshore Chronograph |
| 26480 | Royal Oak Offshore Chronograph |
| 26703 | Royal Oak Offshore Diver Chronograph |
| 67651 | Royal Oak Lady Selfwinding |
| 77240 | Royal Oak Lady Quartz |
| 77302 | Millenary Lady |
| 77350 | Royal Oak Lady Selfwinding |
| 77900 | Royal Oak Offshore Lady |
All serial number year ranges are estimates based on collector references and service documentation. Audemars Piguet does not publish official serial production data. Exact dates may vary by 2\u20135 years. Reference number decoding reflects the modern AP format; vintage or limited edition references may differ.
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Shop Pre-Owned Audemars PiguetFrequently Asked Questions
On most Audemars Piguet watches, the serial number is engraved on the caseback. On some models it may also appear on the movement, visible through a display caseback or during a service. The serial is purely numeric, typically 5–7 digits. Do not confuse it with the reference number, which contains letters and dots (e.g., 15202ST.OO.1240ST.01).
You can estimate the production year using the serial number. Audemars Piguet has used a sequential numeric system since approximately 1892. Because AP produces a relatively small number of watches each year compared to brands like Rolex or Omega, serial numbers are much lower — typically under 1,200,000 for all watches ever made. Enter your serial in the tool above for an approximate production era.
No. The year ranges are estimates based on historical production records. Audemars Piguet does not release official production data, so the ranges are compiled from collector references and service documentation. They are accurate to within approximately 2–5 years. For precise dating, Audemars Piguet SA or an authorized dealer can sometimes look up production records for registered watches.
Modern AP references follow the format: [5-digit model][2-letter material].OO.[bracelet reference].[dial variant]. For example, 15202ST.OO.1240ST.01 breaks down as: 15202 (Royal Oak Jumbo 39mm) | ST (Stainless Steel) | OO (standard lug width) | 1240ST (bracelet reference in steel) | 01 (dial configuration). The 5-digit model number and 2-letter material code immediately after it are the most useful identifiers.
A serial lookup can confirm whether your serial falls within a plausible production range, but it cannot verify authenticity. To confirm an AP is genuine, examine the finishing quality (Audemars Piguet is known for its alternating brushed and polished surfaces), check that the reference engraving matches the model, and verify the movement quality. Gray and Sons thoroughly authenticates all pre-owned Audemars Piguet watches before offering them for sale.