The Audemars Piguet Royal Oak Offshore Chronograph 26238ST is a family of stainless-steel watches, not one fully specified configuration. The suffix matters: it identifies differences such as dial design and whether the watch comes on a rubber strap or steel bracelet. AP specifies a 42 mm selfwinding flyback chronograph with Calibre 4404 for the blue variants covered here, but no exact watch was established as having been handled or tested. The details below therefore distinguish the official examples rather than presenting them as one hands-on specimen.
What “26238ST” tells you—and what it doesn’t
“26238ST” is a reference-family prefix. To identify a particular Royal Oak Offshore Chronograph, use the complete reference, including its suffix. The suffix separates configurations that can share a case and movement while differing in dial pattern, color, strap or bracelet, clasp, and included alternate strap.
For example, the blue-rubber-strap reference 26238ST.OO.A340CA.01 has a blue Méga Tapisserie dial and black counters. The blue-bracelet reference 26238ST.OO.2000ST.01 instead has a blue Petite Tapisserie dial and blue counters. Both are specified by AP as 42 mm steel chronographs with Calibre 4404, but they are not the same configuration. AP’s A340CA.01 specification and AP’s 2000ST.01 specification provide the full details.
How the documented blue variants differ
| Complete reference | Dial | Strap or bracelet | Case and water resistance | Price shown by AP |
|---|---|---|---|---|
| 26238ST.OO.A340CA.01 | Blue Méga Tapisserie, black counters, Arabic numeral hour markers | Blue rubber strap with textile decoration and AP pin buckle; additional black calfskin strap included | 42 mm stainless steel; 15.3 mm thick; 100 m water resistance | Not stated on the cited AP page [AP specification] |
| 26238ST.OO.2000ST.01 | Blue Petite Tapisserie, blue counters, white-gold applied hour markers and hands | Steel bracelet with AP folding clasp; additional blue rubber strap listed | 42 mm stainless steel; 15.3 mm thick; 100 m water resistance | US $51,400 non-binding recommended public price, taxes excluded, displayed on AP’s US page; time-sensitive, checked against the cited page on 2026-10-08 [AP US product page] |
Both pages describe an interchangeable strap system. The listed additional strap differs by reference, and the available information does not establish compatibility with third-party straps.
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#1 Best Overall
- 1.Tube and screw are of the same thickness and strength as what you have on the watch and are made of the highest quality 316L stainless steel just like original.
- 2.It fit all version of Royal Oak Offshore Chronograph including Safari, Alingi, Polaris, Barrichello, Orchard Road, Arnold , Montoya, Jay-Z, Volcano, Offshore Dual Time, Sincere, Rodeo Drive, Monte Napoleone, Worth Avenue, Tantalum, Royal Oak Offshore Scuba Wempe, Royal Oak Offshore Scuba La Boutique in All Versions.
- 3.size： 28mm and 26.5mm；2 sizes available
- 4.packing: 2pcs tubes and 2pcs screws
- 5.Please confirm the model and size of the item suitable for the watch before purchasing to avoid returns/exchanges. If there is a problem with item you receive, please contact us ， We should be able to resolve the problem.
Calibre 4404: AP’s published specifications
For both blue variants, AP lists Calibre 4404, a selfwinding flyback chronograph with hours, minutes, small seconds, and date. The figures below are manufacturer specifications, not independent measurements.
- Power reserve: 70 hours
- Frequency: 4 Hz, or 28,800 vibrations per hour
- Jewels: 40
- Parts: 433
- Total diameter: 32 mm
- Movement thickness: 8 mm
The flyback function allows a chronograph already in operation to be reset and restarted in one sequence, rather than stopping, resetting, and starting it separately. That describes the function; no hands-on operation or performance test is established here.
Rank #2
- Wacth Band Screw Tube Replacement for the Audemars Piguet Royal Oak Offshore watch case which has 28mm straps.
- It fit all version of Royal Oak Offshore Chronograph including Safari, Alingi, Polaris, Barrichello, Orchard Road, Arnold , Montoya, Jay-Z, Volcano, Offshore Dual Time, Sincere, Rodeo Drive, Monte Napoleone, Worth Avenue, Tantalum, Royal Oak Offshore Scuba Wempe, Royal Oak Offshore Scuba La Boutique in All Versions.
- Size: 28mm
- Packing: 2 pcs tubes and 2 pcs screws
- Material: Stainless Steel
Other 26238ST configurations
The prefix also appears on orange- and pink-accent versions. AP identifies 26238ST.OO.A001VE.01 as a selfwinding chronograph with orange accents. For 26238ST.OO.A001VE.02, AP describes a 42 mm stainless-steel chronograph with a black Méga Tapisserie dial and vivid pink accents. The cited product descriptions do not establish that these variants share every dial, strap, or accessory detail with either blue watch. See AP’s A001VE.01 page and AP’s A001VE.02 page.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the specifications can—and can’t—tell you
The A340CA.01’s stated 100 m water resistance is a manufacturer rating, not evidence of real-world performance in a particular watch. The published specifications also do not establish independent timekeeping accuracy, wrist comfort, or secondary-market value. Those questions require evidence beyond the product pages.
Rank #3
- VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER – Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing.
- Check Compatibility: This aftermarket replacement screw link pin set fits Audemars Offshore Ref: 26170ST.OO.D101CR.03 and Chronograph 26170ST or 15613. Confirm your watch model matches for proper fit.
- Accurate Measurements: Each screw link pin is made from high-quality 316L stainless steel, same thickness and strength as original. Verify these dimensions with your watch band before purchasing.
- High-Quality Construction: made of premium 316L stainless steel, these pins match the original's strength and durability. Designed for a custom fit in Audemars Offshore Chronograph bands.
- Included in Set: You will receive 1 set of 2 screw link pins. Ideal for replacing or securing your watch band. Confirm you need this quantity before ordering.
Likewise, the $51,400 figure applies only to the US page’s displayed non-binding recommended public price for 26238ST.OO.2000ST.01, with taxes excluded. It is not a universal price, a transaction value, or a quote for every 26238ST variant; confirm the current page and market before relying on it.
Quick Recap
Best Value
- Perfect Compatibility: Compatible with Audemars Piguet Royal Oak Offshore 42mm chronograph models, ensuring a precise fit.
- Compatible with 26470OR.OO.A002CR.01, 25940OK.OO.D002CA.01, 26703ST.OO.A027CA.01, 26471SR.OO.D101CR.01, 26470OR.OO.1000OR.01, 25940OK.OO.D002CA.02, 26170ST.OO.D101CR.01.
- Durable Build: Made from quality stainless steel for excellent strength, corrosion resistance, and longevity.
- Secure Connection: Provides a firm, reliable hold between the watch strap and case, ideal for daily wear or replacement.
- 2-Pack Set: Includes 2 screw pins, perfect for replacing damaged parts or keeping spares for future maintenance.
Rank #4
- Fit for all Audemars Piguet Royal Oak Offshore Mens watches.
- The Screwdriver design of the tip prevents slipping of the screwdriver and lessens the risk of scratching the watch case or band on the expensive watch. It has a straight blade as opposed to a tapered blade like more conventional screwdriver. Blade are held on tightly with screws.
- Size: We have screw drivers with1.20mm,1.4mm and 1.6mm blades, check the size you need before purchasing.
- Package Includes:1 piece of screwdriver
- We sell only the best quality replacement watch parts and accessories for the watch. We have been selling online for over 10 years. If you have any questions, please contact us in time.100% Satisfaction Guarantee!
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
