Authenticity Guaranteed
Every timepiece is carefully inspected, independently authenticated, and accurately represented before it reaches your collection.
Audemars Piguet
Royal Oak Perpetual Calendar Openworked 26579CE – Black Ceramic
✓ Available Upon RequestThe Timepiece
The openworked perpetual calendar in black ceramic calibre 5135 skeletonized so the entire calendar mechanism is visible through the dial, with a rose gold oscillating weight carrying the architecture. AP's most technical take on its signature complication.
Specifications
- Reference 26579CE.OO.1225CE.01
- 41mm black ceramic case, 9.9mm thick
- Openworked dial with rose gold oscillating weight
- Calibre 5135 automatic perpetual calendar 40-hour power reserve, 19,800 vph
- Perpetual calendar: day, date, month, astronomical moon, leap year, and week indication
- Black ceramic bracelet with titanium AP folding clasp
- Sapphire crystal and sapphire display case back
- 20m water resistance
Availability: Available upon request through the Seaside Timepieces dealer network contact us to confirm and lock it in.
Watch Specifications
Client Services
This timepiece is not currently in our physical inventory but can be sourced through our trusted network of dealers and collectors.
Inquire and we'll respond with availability, condition details, and pricing within 24–48 hours.
We accept all major credit cards, wire transfer, and Shop Pay Installments for qualified buyers.
For high-value purchases, wire transfer is preferred.
Contact us to discuss payment arrangements.
Every timepiece we carry is hand-selected and independently authenticated — no exceptions, no shortcuts.
We're a veteran-owned luxury watch dealer committed to total transparency.
Every order ships fully insured via FedEx or UPS overnight.
Domestic shipping is complimentary on all timepieces.
International shipping is available — contact us for rates.
All sales are final; we stand behind every piece we sell.