Skip to content

Audemars Piguet

Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07

The Audemars Piguet Royal Oak Offshore Chronograph 25770 (reference 25770ST.O.0009/07) is a 42 mm stainless steel watch with a turquoise dial. It runs on the automatic caliber 2226/2840 and is water resistant to 100 m. It was introduced in 1997.

Specifications

Case

Reference
25770ST.O.0009/07
Collection
Royal Oak Offshore
Case size
42 mm
Case material
Stainless steel
Case shape
Round
Crystal
Sapphire
Water resistance
100 m
Bracelet / strap
Strap

Dial and bezel

Dial
Turquoise

Movement

Movement
Automatic
Caliber
2226/2840
Functions
Chronograph, Date, Small seconds

Production

Production
1997 – today (vintage)

Dial versions

This reference was made with these dials and finishes.

  • 25770ST.O.0009/07 Turquoise

    Petite Tapisserie

How it compares within the Royal Oak Offshore family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
25770ST.O.0009/07 (This watch)42 mmStainless steelTurquoise2226/28401997–
15720ST.OO.A403CA.0142 mmStainless steelAbyssal blue43082026–
26238CD.OO.1300CD.0142 mmCeramic / titaniumBlue44042025–
26238ST.OO.A001VE.0142 mmStainless steelSilver44042026–
26238ST.OO.A001VE.0242 mmStainless steelBlack44042026–
26238TI.OO.A001VE.0142 mmTitaniumGrey44042026–
26420CD.OO.A029VE.0143 mmTitanium / blue ceramicBeige44012026–
26420IO.OO.A402CA.0143 mmTitanium / black ceramicGreen44012026–
26622FO.OO.D700VE.0143 mmTitanium / ceramic / forged carbonRed29672026–

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 25770 25770ST.O.0009/07?
The Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07 has a 42 mm case.
What movement does the Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07 use?
It uses the automatic caliber 2226/2840.
How water resistant is the Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07?
It is water resistant to 100 metres.
Is the Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07 still in production?
Vintage.
When did the Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07 come out?
It was introduced in 1997.
What is the Audemars Piguet Royal Oak Offshore Chronograph 25770 25770ST.O.0009/07 made of?
The case is stainless steel. Bracelet or strap: Strap.

Catalog facts checked October 2026.