Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Openworked 41 Ceramic
Reference 26585CE.OO.1225CE.01
About this watch
Welcome to the world of luxury horology! Today, we're going to unpack the stunning Audemars Piguet Royal Oak Perpetual Calendar Openworked 41 Ceramic, model number 26585CE.OO.1225CE.01. This watch isn't just a timepiece; it's a statement. So, grab your favorite beverage, get comfy, and let's explore this piece of art in detail. Before diving into the specifics of the watch, let's take a moment to appreciate the brand behind it. Founded in 1875, Audemars Piguet is one of the oldest Swiss watch manufacturers still in operation. Known for its innovative designs and mechanical prowess, the brand has consistently pushed boundaries in the watchmaking world. The Royal Oak line, introduced in 1972, revolutionized luxury sports watches and has since become an icon. Now, let's get into the specifics of the Royal Oak Perpetual Calendar Openworked 41 Ceramic. This timepiece combines classic elegance with modern engineering, making it a unique addition to any watch collector's arsenal. With a blend of titanium and ceramic, this watch is as durable as it is visually striking. The first thing that catches your eye is the skeletonized dial. It’s not just a design choice; it’s a peek into the intricate mechanics that power this masterpiece. The watch features a stunning skeletonized movement that showcases the inner workings, a hallmark of high-end watchmaking. Constructed from high-tech ceramic and titanium, the Royal Oak Perpetual Calendar Openworked is as robust as it is beautiful. The ceramic provides scratch resistance, while titanium keeps the watch lightweight. This combination ensures that you can wear it daily without worrying about wear and tear. The color palette is primarily a sleek skeleton finish, which adds a modern touch to its overall appearance. The stick and dot indexes contribute to a clean, minimalist look that is easy to read at a glance. It’s a watch that can easily transition from a formal event to a casual outing, making it incredibly versatile. Let's talk about the engine that powers this beauty—the Audemars Piguet caliber AP 5135. This automatic movement is based on the extra-thin AP 5134, featuring a suspended barrel. But what does this mean for you as a wearer? It means precision and reliability. When it comes to functionality, the Royal Oak Perpetual Calendar Openworked does not disappoint. With a water resistance of 20 meters, it's perfect for everyday wear, though I wouldn’t recommend diving in the ocean with it. However, light splashes and rain should pose no problem! The AP 5135 movement has a power reserve of 40 hours, ensuring that you won't have to wind it every day. Its frequency of 19,800 vibrations per hour contributes to its accuracy, ensuring that you’re always on time. Who doesn’t love being fashionably late—except when it comes to your watch? With a luxury watch like this, the question of value always arises. Priced at a premium, the Audemars Piguet Royal Oak Perpetual Calendar Openworked is not for the faint of heart. However, when considering the craftsmanship, brand heritage, and unique features, many collectors would argue that it’s worth every penny. Luxury watches tend to hold their value well, and Audemars Piguet is no exception. The limited availability and high demand for models like the Royal Oak can make it a smart investment for collectors. It’s not just a watch; it’s a piece of history! If you’re a watch enthusiast or collector, this piece is a must-have. Its intricate mechanics and stunning design will surely draw attention and admiration. Plus, you can proudly say you own a piece from one of the most prestigious watchmakers in history. Even if you’re not a hardcore collector, this watch is versatile enough for daily wear. Its elegant design means you can wear it to the office, out on a date, or even at a casual brunch. It’s a conversation starter, that’s for sure! The Audemars Piguet Royal Oak Perpetual Calendar Openworked 41 Ceramic is more than just a watch; it’s a work of art. From its stunning skeletonized movement to its durable yet elegant materials, this timepiece ticks all the boxes for luxury and functionality.
Key Features
- Skeletonized dial with intricate mechanics
- Audemars Piguet caliber AP 5135 automatic movement
- Water resistance up to 20 meters
- Perpetual calendar tracking date, day, month, and leap year
- Moonphase indicator requiring adjustment every 125 years and 317 days
- Titanium and ceramic construction with scratch-resistant ceramic
- Sapphire glass for crystal clarity
Specifications
- Brand
- Audemars Piguet
- Family
- Royal Oak
- Model
- Royal Oak Perpetual Calendar Openworked 41 Ceramic
- Reference
- 26585CE.OO.1225CE.01
- Movement
- ap-5135
- Movement Features
-
- Hours, Minutes
- Date, Day, Leap Year, Month, Week Indicator
- Moonphase
- Case
- 41mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 20
Current Listings

Audemars Piguet Royal Oak Offshore "Themes" 26170ST.OO.1000ST.08
A stainless steel case, 42mm in diameter, housing a self-winding chronograph movement with date display and small seconds at the 12 o'clock position.
- Condition: pristine condition
- Case material: stainless steel
- Bracelet type: Offshore stainless steel bracelet
- Movement type: self-winding (Calibre 3126 / 3840)

NOS Audemars PIGUET ROYAL OAK 15550ST BLUE DIAL 37MM 2023 COMPLETE SET
A brand new 2023 Audemars Piguet Royal Oak Self-Winding Stainless Steel watch with a beautiful blue dial and complete set.
- Condition: New Old Stock, Unworn & Unsized
- Year: 2023
- Case Size: 37mm
- Material: Stainless Steel
2023 26240ST Audemars Piguet Royal Oak Chronograph Blue Dial FULL SET
2023 Audemars Piguet Royal Oak Chronograph with a blue dial. The watch is part of the full set and includes various documentation.
- Condition: Minimally worn, MINT unpolished condition
- Year: 2023
- Set Type: Full Set
16202BC Audemars Piguet Royal Oak White Gold Jumbo Blue Tuscan Dial COMPLETE SET
The watch being listed is a 2023 Audemars Piguet Royal Oak White Gold Jumbo Blue Tuscan Dial COMPLETE SET in excellent condition. The blue dial and sharp white gold case and bracelet are described as stunning.
- Condition: Excellent, unpolished condition
- Case material: White Gold
- Bracelet type: Complete Set

2025 NEW UNWORN Audemars Piguet Royal Oak Chronograph Blue Rose Gold 26240OR
A 2025 Audemars Piguet Royal Oak Chronograph in Blue Dial housed in Rose Gold, featuring a stunning Bleu Nuit Nuage 50 Grande Tapisserie dial and attractive bezel with polished edges.
- Condition: unworn
- Case material: 18k pink gold
- Diameter: 41mm
- Water resistance: 30m

Audemars Piguet Royal Oak Yellow Gold On Gold 14790BA
Preserved in overall very good condition, comes with box. Light visible surface wear on the case and bracelet.
- Condition: very good condition, with light surface wear
- Shipping: complimentary fully-insured international shipping via FedEx Priority

Audemars Piguet Royal Oak Panda Watch 26331ST.OO.1220ST.03 Chronograph
A stainless steel Royal Oak Chronograph watch with a white Panda dial and chronograph function, featuring a 41MM case.
- Case material: Stainless Steel
- Dial color: white

Audemars Piguet Royal Oak Black Dial Black Ceramic FULL SET MINT 26240CE
This Audemars Piguet Royal Oak features a black ceramic case, black Grande Tapisserie dial with pink gold accents, and a discreet date display at 4:30. It has a 70-hour power reserve, is water-resistant up to 50 meters, and includes luminous hour markers and hands for easy readability.
- Condition: Mint condition with little to no signs of wear
- Case material: Black ceramic
- Diameter: 41mm
- Depth rating: 50m