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AP ROYAL OAK OFFSHORE 43MM SMOKED TAUPE DIAL 26420SO
Full set 2023
Original price was: $72,000.00.$49,795.00Current price is: $49,795.00.
$38,995.00
Price includes 10% GST for Australian customers
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The Audemars Piguet Royal Oak Offshore Diver 15720ST— Royal Oak DNA, 300 metres down
The Royal Oak Offshore Diver is not a Royal Oak with a dive bezel added. It shares the Royal Oak’s octagonal case architecture and integrated lug language but is built around a fundamentally different brief: 300 metres of water resistance, an internal rotating dive bezel, and a tool watch identity that the dress-oriented Royal Oak cannot claim. The result is the Royal Oak DNA deployed as a genuine instrument — one of the few luxury sport watches that can credibly enter the water it references.
The 15720ST is the third and current generation of the Offshore Diver in steel, introducing meaningful upgrades over its predecessor: the new Calibre 4308 movement with a 60-hour power reserve, ceramic crown inserts across the case, AP’s tool-free interchangeable rubber strap system, and a refined dial with simplified “AP” logo typography. This generation launched in 2021 and remains in current production — a 2025 example is the latest iteration of the most complete version of the Offshore Diver yet built.
The grey dial features the “Méga Tapisserie” pattern — larger chequerboard squares than the standard Petite Tapisserie found on most Royal Oak references — creating a bolder, more tactile surface that reads distinctly from the standard Royal Oak at close range. Against this, white gold applied hour markers carry luminescent coating for legibility in darkness or at depth, and Royal Oak hands in the same luminescent finish complete the dial. The blue internal rotating dive bezel — marked from 60 to 15 minutes in white — provides the elapsed dive time function without adding height to the case.
The grey dial is the configuration that reads most cohesively on the grey rubber strap supplied as standard: the monochromatic palette from dial to strap is intentional, and the only colour departure is the blue of the internal bezel and the crown ceramic inserts.
The Calibre 4308 brought the Offshore Diver’s power reserve from 50 hours (in the previous 3120) to 60 hours — a practical improvement for a dive watch that may spend extended time unworn between expeditions. The ceramic crown inserts replace the rubber-clad crowns of the previous generation, providing a harder, sturdier, longer-lasting and a more scratch-resistant material in the positions most susceptible to contact damage.
The interchangeable strap system is the quality-of-life upgrade that collectors notice immediately in use. The grey rubber strap releases from the case without tools — a lever mechanism in the lug allows each strap to be swapped in seconds, transforming the watch from its standard grey monochromatic configuration to the spare black rubber strap included in this listing. For a watch rated to 300 metres, the ability to rotate between straps for different environments without a spring bar tool is a genuine utility, not a marketing point.
Mint. Full set complete with 2025 warranty documentation.
Calibre24 is a Perth-based dealer specialising in pre-owned Rolex, Patek Philippe, Audemars Piguet, Vacheron Constantin, and Richard Mille. Every piece is authenticated in-house before listing. This 15720ST ships fully insured to any address in Australia. Viewings by appointment in Perth. Trade-in and consignment available.
Is this AP Royal Oak Offshore Diver 15720ST available in Australia? Yes. This 2025 Audemars Piguet Royal Oak Offshore Diver 15720ST in grey dial is held in Perth by Calibre24 and ships fully insured across Australia, including Sydney, Melbourne, Brisbane, and Adelaide. Viewings by appointment in Perth.
What is the AP Royal Oak Offshore Diver 15720ST? The 15720ST.OO.A009CA.01 is the current stainless steel grey dial version of the Audemars Piguet Royal Oak Offshore Diver — the third-generation Offshore Diver, introduced in 2021. It has a 42mm stainless steel case with the Royal Oak’s signature octagonal bezel and eight hexagonal screws, a grey Méga Tapisserie dial with white gold applied markers, and a blue internal rotating dive bezel. Water resistant to 300 metres. Powered by the Calibre 4308 automatic with 60-hour power reserve. Fitted with grey rubber strap and AP’s tool-free interchangeable strap system.
What is the difference between the Royal Oak Offshore Diver and the standard Royal Oak? The Royal Oak Offshore Diver and the Royal Oak share the same octagonal case architecture and eight-screw bezel language, but are built for different purposes. The Royal Oak (ref. 15500ST, 15202ST) is a time-and-date dress-sport watch, water resistant to 50 metres, on an integrated steel bracelet. The Royal Oak Offshore Diver is rated to 300 metres, features an internal rotating dive bezel for elapsed underwater time measurement, uses a rubber integrated rubber-strap rather than an integrated-steel bracelet, and carries the higher-spec Calibre 4308 movement. The Offshore Diver is the tool watch; the Royal Oak is the sports-dress watch.
What is the difference between the Royal Oak Offshore Diver 15710ST and 15720ST? The 15710ST was the second-generation Royal Oak Offshore Diver, in production from approximately 2015 to 2021. The 15720ST replaced it as the third generation with three meaningful upgrades: the Calibre 4308 movement (60-hour power reserve, up from 50 hours in the previous Calibre 3120), ceramic crown inserts replacing the rubber-clad crowns of the 15710ST, and the new tool-free interchangeable rubber strap system. The dial was also redesigned with a simplified “AP” logo and the current Méga Tapisserie finishing. The 15720ST is the current and most refined generation.
What is the tool-free interchangeable strap system on the 15720ST? The third-generation Offshore Diver introduced AP’s quick-release interchangeable strap system — a lever mechanism integrated into the case lug that allows each rubber strap to be detached and reattached without a spring bar tool or watchmaker. Pressing or sliding the release lever frees the strap from the lug, and a replacement strap clicks securely back into place in seconds. This listing includes the fitted grey rubber strap and an additional black rubber strap, both quick-release compatible, allowing the buyer to alternate configurations without any tools.
What is the Méga Tapisserie dial pattern on the Royal Oak Offshore Diver? The Méga Tapisserie is a larger-scale version of the Petite Tapisserie chequerboard pattern found on the standard Royal Oak. Where the Royal Oak’s Petite Tapisserie is composed of small, finely milled squares, the Méga Tapisserie uses a bolder, larger grid — more visible at arm’s length and giving the Offshore Diver’s dial a distinctly different character from the standard Royal Oak. On the 15720ST grey dial, the Méga Tapisserie is matte grey, providing texture without metallic reflectivity.
What is the Calibre 4308 in the AP Royal Oak Offshore Diver? The Calibre 4308 is Audemars Piguet’s in-house self-winding movement used in the current Offshore Diver. It runs at 28,800 vph (4 Hz), has 32 jewels, and delivers 60 hours of power reserve — up from the 50 hours of the previous Calibre 3120. The movement is visible through the sapphire exhibition caseback.
Does this AP Royal Oak Offshore Diver come with box and papers? Yes — complete full set with original Audemars Piguet box, papers, and documentation. 2025 warranty. Grey rubber strap fitted and additional black rubber strap included.
Can I sell or trade in my Audemars Piguet or other luxury watch? Yes. Calibre24 buys and takes consignment on Audemars Piguet, Rolex, and other high-end references. Contact us for a current valuation.
15720ST.OO.A009CA.01
Mint
Full Set with Box & Papers
2025
Grey
42mm
Stainless Steel
AUD
Shipping: Fully insured and express shipping available at a small cost.
Payment methods: Bank Transfer, EFTPOS, Credit or Debit (Master/Visa/AMEX) cards accepted. We do not accept crypto or cash payment.
Customers from any other country (outside of Australia) will be responsible to pay for any import taxes, customs and/or duties, as applicable, by their country laws. Our price doesn’t include any VAT, GST or any duties for any countries when the item is exported out of or shipped outside of Australia.
We are a licensed Australian Second Hand Watch Dealer, and one of the largest and safest Australian online watch platforms located in Perth, WA, and have delivered watches to watch enthusiasts across Australia and beyond. Please read our reviews across any platforms online to see what our customers say about their experience of an online purchase of a luxury watch from us.
Please refer to our website FAQ’s section for more details or reach out to us at Hello@calibre24.com.au with any queries.
Second Hand Dealer License No. SHD-79453.
Original price was: $72,000.00.$49,795.00Current price is: $49,795.00.
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We are an independent business, founded, run and managed by a watch collector and enthusiast Hafiz J Mehmood.