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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsAudemars Piguet’s Royal Oak Perpetual Calendar Ultra-Thin reference 26586BA.OO.1240BA.99 is a monochromatic special edition crafted entirely in 18-carat yellow gold and powered by the selfwinding Calibre 5133, according to the official product page. The reference brings the Royal Oak’s familiar design language together with a perpetual calendar, but AP’s published material does not establish this gold model’s case dimensions or thickness.
What is the full-gold Royal Oak Perpetual Calendar Ultra-Thin?
The watch is Audemars Piguet reference 26586BA.OO.1240BA.99. AP describes it as an entirely 18-carat yellow-gold special edition, with a selfwinding Calibre 5133. Its official product page identifies the model and movement but does not provide a complete specification table or a rendered price.
The “full-gold” description refers to the material: the watch is monochromatic and entirely crafted in 18-carat yellow gold. The reference-specific information available from AP does not establish dimensions, water resistance, edition quantity, production status, or current inventory. Those details should not be inferred from other Royal Oak Perpetual Calendar models.
What does the perpetual calendar do?
A perpetual calendar is designed to account mechanically for the changing lengths of months, including February and leap years. AP explains that the complication uses a mechanical memory, or cam, to reproduce four-year cycles. AP says manual adjustment is required once every hundred years. This is the manufacture’s general explanation of the complication, not a model-specific guide to setting or operating reference 26586BA.OO.1240BA.99. Read more in AP’s Complications: Astronomy.
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- Sise: 10.5mmx1.5mmx1.0mm M:1.4mm
- Package Include: 4 pieces
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How thin is the full-gold model?
AP’s available reference-specific product page does not state the case height or movement thickness for 26586BA.OO.1240BA.99. The often-cited figures of a 2.89 mm movement and 6.3 mm case height belong to AP’s Royal Oak Selfwinding Perpetual Calendar Ultra-Thin RD#2 account, not to specifications verified here for this yellow-gold reference.
AP dates the RD#2 breakthrough to 2018 and describes it as the world’s thinnest automatic perpetual-calendar wristwatch. In its RD series history, AP attributes the thinness to arranging perpetual-calendar functions on one level, including integrating the end-of-month cam with the date wheel and the month cam with the month wheel. That explains the RD#2 engineering context; it does not confirm that the same dimensions or construction details apply to 26586BA.OO.1240BA.99.
Rank #2
- Compatibility: Audemars Piguet Royal Oak
- Material: Stainless Steel Total Length: 160mm Thickness: 3mm
- Link Removal Tool Required to Easily Shorten Band to fit your Wrist
- Package Included: 1 x Strap
- Your Satisfaction is our highest priority. Pls contact us if you have any questions, we will try our best to serve for you.
How it fits the Royal Oak collection
The Royal Oak debuted in 1972 and was designed by Gérald Genta. AP’s collection overview identifies its octagonal bezel, eight hexagonal screws, hand-finished case, and Tapisserie dial as characteristic design cues. The full-gold perpetual calendar places those collection signatures in a precious-metal context, while adding a complication that tracks calendar cycles mechanically.
AP’s current collection page says more than 500 Royal Oak iterations have been created. The count reflects the collection’s breadth, rather than the number of versions of this specific perpetual-calendar reference. See AP’s Royal Oak collection overview.
Rank #3
- Our Movado products represent the epitome of the Movado ethos—fusing iconic modern design with quality craftsmanship to create timeless watches.
- Men's Sapphire, yellow PVD-finished stainless steel case and link bracelet, gold mirror Museum dial with concave dot.
- Refined Swiss Engineering: The quartz watch movement is powered by a battery. The quartz movement provides precise timekeeping and requires minimal maintenance, making it a reliable and worry-free timepiece.
- Caring for Your Timepiece: Like any finely crafted mechanism, your Movado watch requires periodic maintenance to ensure optimal performance. A maintenance interval of 3 to 5 years is recommended, in addition to any required battery replacement. Never open the watch yourself.
- Water Resistant: Up to 30m (100 ft): Will withstand splashes or brief immersion in water, but not suitable for swimming or showering; 3 ATM.
What to verify when comparing Royal Oak perpetual calendars
Royal Oak perpetual calendars can differ substantially by reference. Before comparing this gold Ultra-Thin with another model, check the manufacturer’s page for that exact reference and compare the details below; do not transfer a specification from one version to another.
- Reference and variant: confirm the complete reference number and whether the watch is the Ultra-Thin or a standard perpetual-calendar variant.
- Case and bracelet material: distinguish gold from other case or bracelet materials rather than relying on a collection name or photograph.
- Movement or caliber: confirm the movement designation; AP identifies Calibre 5133 for 26586BA.OO.1240BA.99.
- Dimensions: verify case diameter and thickness from the model-specific page.
- Dial layout: compare the calendar display and dial details on the actual reference.
Price, availability, and servicing
AP’s product page does not establish a current price or inventory for this reference. It provides routes to find a boutique and arrange a service appointment. AP’s collection page also directs owners toward boutiques for watch servicing. These are manufacturer pathways, not confirmation that a particular boutique has the watch available.
Rank #4
- Compatibility: Audemars Piguet Royal Oak
- Material: Stainless Steel Total Length: 160mm Thickness: 3mm
- Link Removal Tool Required to Easily Shorten Band to fit your Wrist
- Package Included: 1 x Strap
- Your Satisfaction is our highest priority. Pls contact us if you have any questions, we will try our best to serve for you.
If searching a marketplace, the exact phrase “Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin 26586BA.OO.1240BA.99” can help identify listings for the reference. A search result alone does not confirm that a listing exists, that a seller is authorized, or that an offered watch is genuine.
Quick Recap
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- Compatible with Audemars Piguet Royal Oak Offshore AP 28 mm: Replacement for 15703 15710 15400 26470 26400 watch band
- Band Width: 28mm.
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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.
