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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The Royal Oak Offshore Selfwinding Chronograph is not one fixed configuration: reference numbers distinguish differences in materials, dial details and straps. For reference 26420IO.OO.A009CA.01, Audemars Piguet lists a 43 mm titanium-and-ceramic watch, 14.4 mm thick, with the automatic Calibre 4401 flyback chronograph and 100 m water resistance. Those specifications describe that reference, not every Offshore Selfwinding Chronograph.
Which Royal Oak Offshore Selfwinding Chronograph is this?
This overview focuses on Audemars Piguet reference 26420IO.OO.A009CA.01, an example in the 43 mm Selfwinding Chronograph family. AP also lists reference 26420SO.OO.A002CA.01 in stainless steel with black ceramic. These are examples, not a complete list of family variants; check the reference number when comparing a listing or confirming specifications.
The specific watch described here has a titanium case and grey ceramic bezel, paired with a grey Méga Tapisserie dial, blue counters and blue external zone. White-gold applied hour markers and Royal Oak hands have luminescent coating. The case’s sapphire crystal and caseback are glareproofed. Audemars Piguet’s product page for reference 26420IO.OO.A009CA.01 is the source for these details.
What is it like on the wrist?
A hands-on verdict about fit, comfort, legibility or operating feel depends on handling the exact watch and knowing the wearer’s wrist. No such observations are established here, so dimensions and construction are the sound basis for setting expectations: this reference is 43 mm across and 14.4 mm thick, with a titanium case, ceramic bezel and rubber strap. Those figures cannot, by themselves, establish how it will sit or feel on an individual wrist.
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#1 Best Overall
- Perfect Compatible with Audemars Piguet AP Royal Oak Offshore: 15703(Women's style) 15400 15202 26331 Watch modles
- Product Include: 1×28mm rubber strap replacement + 1× strap removal tool + 1× quick release spring lever + strap outer packaging. Using the included replacement tool, you can quickly install the strap.
- Select The Appropriate Width: Compatible Replacement for AP with dimensions of 28mm band straps, Measure the size near the strap buckle or the inside of the strap.
- High Quality Materials: High quality rubber material, waterproof and sweatproof, dust-free replacement 28MM compatible Rubber watch band
- Have any questions on how to choose the size, please contact customer service
How thick is the 43 mm Royal Oak Offshore chronograph?
AP lists the 26420IO.OO.A009CA.01 at 43 mm in diameter and 14.4 mm thick. The case is rated to 100 m water resistance. These are manufacturer specifications for this reference, not measurements from an independent test. Confirm the dimensions against the exact reference, since the family includes configurations with different materials and details.
What movement is in the Royal Oak Offshore Selfwinding Chronograph?
The featured reference uses Audemars Piguet Calibre 4401, a selfwinding movement with a flyback chronograph, hours, minutes, small seconds and date. AP lists a 70-hour power reserve, 40 jewels, 381 parts, a frequency of 4 Hz (28,800 vibrations per hour) and movement thickness of 6.8 mm. These are the brand’s published specifications, not independent performance or accuracy test results.
Rank #2
- Using high quality Nature Rubber materials. Make you feel light, strong, soft and flexible in the process of wearing.
- Compatible with Audemars Piguet Royal Oak Offshore AP 28 mm: Replacement for 15703 15710 15400 26470 26400 watch band
- Band Width: 28mm.
- WHAT YOU GET: 1 x Rubber Watch Band, 1 x Spring Bar Tool, 2 x Strap Pins.
- If you have any problems, please feel free to contact with us. We are very happy to help you.
What strap does it come with?
The watch is fitted with an interchangeable grey rubber strap and titanium pin buckle. AP says an additional blue rubber strap is included. The official listing establishes the supplied straps for this reference; it does not establish compatibility with third-party straps, so confirm fitment for the exact watch before buying alternatives.
How much water resistance does it have?
AP rates reference 26420IO.OO.A009CA.01 to 100 m. That is the manufacturer’s stated rating, not a guarantee that a particular used watch remains water-resistant: condition, maintenance and seal integrity matter. AP’s general Calibre 2713/2714/2716 user guide recommends annual seal checks and rinsing with clear water and drying after swimming. It also advises avoiding major shocks, strong magnetic fields and thermal shocks. That guide is for other calibres and should be read as general AP care guidance, not as the specific manual or service schedule for this reference.
Rank #3
- Using high quality Nature Rubber materials. Make you feel light, strong, soft and flexible in the process of wearing.
- Compatible with Audemars Piguet Royal Oak Offshore AP 28 mm: Replacement for 15703 15710 15400 26470 26400 watch band
- Band Width: 28mm.
- WHAT YOU GET: 1 x Rubber Watch Band, 1 x Spring Bar Tool, 2 x Strap Pins.
- If you have any problems, please feel free to contact with us. We are very happy to help you.
What was the listed US price?
When accessed on October 8, 2026, AP’s US product page displayed $47,300 as a non-binding recommended public price, excluding taxes. Treat that as a dated US reference point—not a guaranteed transaction price, a current quote, or a price applicable in other countries. The page does not establish a market or resale value.
Quick Recap
Best Value
- Band Material: High Quality Rubber/Silicone
- Band lug width and Length: The strap width is 28mm, and the strap length is 105mm+ 70mm
- Compatible for Audemars Piguet AP Royal Oak Offshore 28 mm Watch Band: 15703 15710 15400 26470 26400 watch strap
- Package：1* Compatible Audemars Piguet Rubber Watch Band+ 1* Tool+ 2* Screws
- Easy to install and remove,Perfect suitable for your watch.
Rank #4
- 【Perfectly Compatible model】 15703 15710 15400 26470 26400 model watch band Replacement
- 【Free Installation Tools】 1 x Rubber 26mm Watch Band+1x Tool+3x Spring Bar
- 【High Quality】Non-original, as an affordable high-quality alternative strap it is not only very good but also cheaper.
- 【Features】 Strong durable Rubber watch strap. This washable, waterproof watch strap can handle the office, the gym, the water rafting trip and look amazing doing it. Completely waterproof & Washable, fairly sweat resistant. Soft, stretchy, and light weight bring you a comfortable wearing experience.
- 【Service Guarantee】Please CONTACT US if you have any trouble, we will respond you within 24 hours. We take care of all quality-related issues with a REPLACEMENT or 100% REFUND.
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.
