Audemars Piguet
Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08
“The Beast”
The Audemars Piguet Royal Oak Offshore Chronograph 25721 (reference 25721ST.OO.1000ST.08) is a 42 mm stainless steel watch with a black dial. It runs on the automatic caliber 2226/2840 and is water resistant to 100 m.
Specifications
Case
- Reference
- 25721ST.OO.1000ST.08
- Nickname
- The Beast
- Collection
- Royal Oak Offshore
- Case size
- 42 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Stainless steel
Dial and bezel
- Dial
- Black
Movement
- Movement
- Automatic
- Caliber
- 2226/2840
- Functions
- Chronograph, Date, Small seconds
Production
- Production
- Vintage
Dial versions
This reference was made with these dials and finishes.
25721ST.OO.1000ST.08 The Beast
Mega Tapisserie · “The Beast”
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 |
|---|---|---|---|---|---|
| 25721ST.OO.1000ST.08 (This watch) | 42 mm | Stainless steel | Black | 2226/2840 | — |
| 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 Chronograph 25721 25721ST.OO.1000ST.08?
- The Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08 has a 42 mm case.
- What movement does the Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08 use?
- It uses the automatic caliber 2226/2840.
- How water resistant is the Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08?
- It is water resistant to 100 metres.
- Is the Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08 still in production?
- Vintage.
- What is the Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08 made of?
- The case is stainless steel. Bracelet or strap: Stainless steel.
- What is the Audemars Piguet Royal Oak Offshore Chronograph 25721 25721ST.OO.1000ST.08 nicknamed?
- Dealers and collectors call it the “The Beast”.
Catalog facts checked October 2026.