Audemars Piguet Royal Oak Offshore 25721BA Yellow Gold Beast Strap Guide
The Audemars Piguet Royal Oak Offshore 25721BA family debuted at Basel in April 1993 as part of the original Royal Oak Offshore launch, the watch collectors still call The Beast. Its then-unprecedented 42mm case caused a stir when the average men's watch size of the era was closer to 36mm. The 25721BA is the 18-carat yellow gold variant within that historic family, produced across two references with different bracelet configurations, and remains one of the earliest gold executions of the design that defined the entire Offshore line.
Looking for an OEM replacement strap for your Audemars Piguet Royal Oak Offshore 25721BA? MIDAS straps are designed as a direct-fit aftermarket replacement, compatible with the factory end links, so there's no compromise swapping away from the factory strap. Available in all 14 MIDAS colours, with free shipping and a lifetime warranty.
Identifying your Royal Oak Offshore 25721BA
Check your dial against the references below to confirm exactly which one you have before checking fitment.
Yellow Gold Beast — 25721BA.OO.1000BA.01
Yellow Gold Beast — 25721BA.OO.1000BA.03
Quick reference: fitment table
| Nickname | Full reference | Fitment |
|---|---|---|
| Yellow Gold Beast (.01) | 25721BA.OO.1000BA.01 | Bracelet conversion, end links required |
| Yellow Gold Beast (.03) | 25721BA.OO.1000BA.03 | Bracelet conversion, end links required |
Fitment guide: does a MIDAS strap fit my Royal Oak Offshore 25721BA?
Both 25721BA references ship on an integrated factory bracelet. Their bracelet end links are built into the bracelet itself, so you'll need to separately source replacement strap end links before fitting a MIDAS strap, neither reference is a direct swap out of the box. Once fitted with the correct end links, use the supplied MIDAS tang buckle.
Every Audemars Piguet Royal Oak Offshore rubber strap from MIDAS is engineered for this end link design once converted. An Audemars Piguet Royal Oak Offshore rubber strap is a popular upgrade from the factory bracelet for everyday wear.
About MIDAS
MIDAS was founded in London in 2019 with a simple goal: to create a better alternative to the OEM Audemars Piguet Royal Oak Offshore strap. The factory strap is expensive, stiff and uncomfortable over time. For a watch as bold as the Royal Oak Offshore, we felt collectors deserved better.
We set out to create a premium aftermarket AP rubber strap that is more comfortable, more affordable and available in colours that do justice to the watch. Inspired by the world of performance cars, from Porsche GT racing to Ferrari, every MIDAS strap is designed to complement the bold character of the Royal Oak Offshore.
Why MIDAS
Premium Straps
As passionate AP enthusiasts, we design premium rubber straps for Royal Oak Offshore collectors who value exceptional comfort, precise fit and everyday durability.
14 Amazing Colours
Choose from 14 distinctive colours inspired by the world of performance cars. Build a collection of straps to match your watch, your style or simply your mood every day.
Trusted by Collectors
Over 1,000 MIDAS straps have been supplied to Royal Oak Offshore collectors worldwide. Every strap is backed by our lifetime warranty for complete confidence.
FAQ
Will a MIDAS strap fit my Audemars Piguet Royal Oak Offshore 25721BA?
Both references ship on an integrated bracelet, so you'll need separate bracelet-conversion end links before a MIDAS strap can be fitted, this applies to any 25721BA reference.
Do I need to buy new end links?
Yes, on both references. The bracelet end links are integrated into the bracelet itself, so replacement strap end links are required before fitting a MIDAS strap.
What buckle should I use?
The supplied MIDAS tang buckle.
What tools do I need to change the strap?
See our how-to install guide for exactly what's needed and the full process.
Is a MIDAS strap OEM or aftermarket?
MIDAS straps are a direct-fit aftermarket replacement, engineered to the exact specifications of the factory strap, so fitment, function, and finish match without needing any AP-branded parts.
Does MIDAS offer a warranty?
Every MIDAS strap is backed by a lifetime warranty.
Do you ship to my country?
Yes. MIDAS offers free worldwide shipping on every order, wherever you're based.
Trusted by Collectors
I have bought straps from another brand costing almost twice as much, but these are just as good, if not better. They are very comfortable, fit perfectly and are easy to swap. Highly recommended.
I first bought a black strap because the OEM rubber felt too stiff. MIDAS straps are much more comfortable, and I prefer the slimmer profile. I chose something bolder for my second purchase.
A great product and buying experience. My Diver had become a little boring, but this strap gave it a fresh look and much more wrist time. Fast shipping and excellent communication throughout.
I wanted a replacement after my OEM strap cracked. I did not expect an aftermarket AP rubber strap to feel this good. It is more flexible, grips well and matches the dial perfectly.
Royal Oak Offshore 25721BA Customer Photos
Real MIDAS straps on real 25721BA owners' watches. Check back soon, we're building this gallery out as customer photos come in.