Audemars Piguet
Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01
The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 (reference 26420SO.OO.A002CA.01) is a 43 mm stainless steel / black ceramic watch with a black dial. It runs on the automatic caliber 4401 with a 70-hour power reserve and is water resistant to 100 m. It was introduced in 2021 and is still in production.
Specifications
Case
- Reference
- 26420SO.OO.A002CA.01
- Collection
- Royal Oak Offshore
- Case size
- 43 mm
- Thickness
- 14.4 mm
- Case material
- Stainless steel / black ceramic
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Rubber (interchangeable) strap
Dial and bezel
- Dial
- Black
- Bezel
- Octagonal, black ceramic
Movement
- Movement
- Automatic
- Caliber
- 4401
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
- Jewels
- 40
- Functions
- Flyback chronograph, Date
Production
- Production
- 2021 – today (current)
How it compares within the Royal Oak Offshore family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 26420SO.OO.A002CA.01 (This watch) | 43 mm | Stainless steel / black ceramic | Black | 4401 | 2021– |
| 15720ST.OO.A403CA.01 | 42 mm | Stainless steel | Abyssal blue | 4308 | 2026– |
| 26238CD.OO.1300CD.01 | 42 mm | Ceramic / titanium | Blue | 4404 | 2025– |
| 26238ST.OO.A001VE.01 | 42 mm | Stainless steel | Silver | 4404 | 2026– |
| 26238ST.OO.A001VE.02 | 42 mm | Stainless steel | Black | 4404 | 2026– |
| 26238TI.OO.A001VE.01 | 42 mm | Titanium | Grey | 4404 | 2026– |
| 26420CD.OO.A029VE.01 | 43 mm | Titanium / blue ceramic | Beige | 4401 | 2026– |
| 26420IO.OO.A402CA.01 | 43 mm | Titanium / black ceramic | Green | 4401 | 2026– |
| 26622FO.OO.D700VE.01 | 43 mm | Titanium / ceramic / forged carbon | Red | 2967 | 2026– |
About the Royal Oak Offshore family
The Royal Oak Offshore was introduced in 1993, designed by Emmanuel Gueit as a larger, more robust version of the Royal Oak. The first chronograph, ref. 25721, had a 42 mm case and rubber-clad pushers and crown, and its size was unusual for the time.
The line went on to include the 42 mm and 44 mm chronographs, divers with an internal rotating bezel, such as ref. 15720, and many models in ceramic, titanium, forged carbon and gold. Recent chronographs use in-house calibers such as the 4401 flyback in the 43 mm ref. 26420. Dealers note case size, material and strap, and the condition of rubber parts, which often need replacing at service.
Quick answers
- What size is the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01?
- The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01 has a 43 mm case, 14.4 mm thick.
- What movement does the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01 use?
- It uses the automatic caliber 4401, with a 70-hour power reserve.
- How water resistant is the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01?
- It is water resistant to 100 metres.
- Is the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01 still in production?
- Yes, it is a current reference.
- When did the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01 come out?
- It was introduced in 2021.
- What is the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43 26420SO.OO.A002CA.01 made of?
- The case is stainless steel / black ceramic. Bracelet or strap: Rubber (interchangeable) strap.
Catalog facts checked September 2026.