Audemars Piguet
Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01
The Audemars Piguet Royal Oak Perpetual Calendar 41 (reference 26574BA.OO.1220BA.01) is a 41 mm yellow gold watch with a blue dial. It runs on the automatic caliber 5134 with a 40-hour power reserve and is water resistant to 20 m. It was introduced in 2016.
Specifications
Case
- Reference
- 26574BA.OO.1220BA.01
- Collection
- Royal Oak
- Case size
- 41 mm
- Thickness
- 9.5 mm
- Case material
- Yellow gold
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 20 m
- Bracelet / strap
- Integrated bracelet, yellow gold
Dial and bezel
- Dial
- Blue
- Bezel
- Octagonal, screwed
Movement
- Movement
- Automatic
- Caliber
- 5134
- Power reserve
- 40 hours
- Frequency
- 19,800 vph
- Jewels
- 38
- Functions
- Perpetual calendar, Moonphase
Production
- Production
- 2016 – today
Dial versions
This reference was made with these dials and finishes.
26574BA.OO.1220BA.01 Blue
Blue
How it compares within the Royal Oak family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 26574BA.OO.1220BA.01 (This watch) | 41 mm | Yellow gold | Blue | 5134 | 2016– |
| 15510ST.OO.1320ST.10 | 41 mm | Stainless steel | Grey | 4302 | 2023– |
| 16202XT.OO.1240XT.01 | 39 mm | Titanium and bulk metallic glass | Red | 7121 | 2023– |
| 26240BC.GG.1324BC.02 | 41 mm | White gold | Blue | 4401 | 2023– |
| 26240BC.OO.1320BC.04 | 41 mm | White gold | Blue | 4401 | 2025– |
| 26240BC.SS.1320BC.01 | 41 mm | White gold | Blue | 4401 | 2023– |
| 26545XT | 39 mm | Titanium / Bulk Metallic Glass | Blue | — | 2025– |
| 26585XT.OO.1220XT.01 | 41 mm | Titanium / BMG | Skeleton | 5135 | 2025– |
| 26586XT.OO.1240XT.01 | 41 mm | Titanium / BMG | Pink | 5133 | 2026– |
About the Royal Oak family
The Royal Oak was introduced in 1972 with ref. 5402, a steel watch designed by Gérald Genta with an octagonal bezel held by eight hexagonal screws, a Tapisserie-patterned dial and an integrated bracelet. It established the idea of a luxury sports watch in steel.
The extra-thin 39 mm models, such as ref. 15202 and the ref. 16202 of 2022 with caliber 7121, are the direct descendants of the original. Other key families include the 41 mm Selfwinding 15500 and 15510, the chronographs such as ref. 26240, perpetual calendars such as ref. 26574 and many gold, ceramic and titanium versions. Dealers read the full reference to confirm case material and dial, and check for polishing, which can soften the case's sharp edges.
Quick answers
- What size is the Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01?
- The Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01 has a 41 mm case, 9.5 mm thick.
- What movement does the Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01 use?
- It uses the automatic caliber 5134, with a 40-hour power reserve.
- How water resistant is the Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01?
- It is water resistant to 20 metres.
- When did the Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01 come out?
- It was introduced in 2016.
- What is the Audemars Piguet Royal Oak Perpetual Calendar 41 26574BA.OO.1220BA.01 made of?
- The case is yellow gold. Bracelet or strap: Integrated bracelet, yellow gold.
Catalog facts checked October 2026.