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 �Vampire� Black Red FULL SET MINT 26470ST
The Audemars Piguet Royal Oak Offshore 'Vampire' features a dark Mega Tapisserie dial with red accents and a brushed stainless steel bezel. It's a high-end watch suitable for both formal and casual settings.
- Condition: Mint condition, little to no signs of wear
- Diameter: 42mm
- Case material: Brushed stainless steel
- Exhibition caseback: Flawless view of the movements
Audemars Piguet Royal Oak 15300ST - Like New With Warranty
The Audemars Piguet Royal Oak 15300ST is a stunning watch with a white dial and grande tapisserie pattern. It features a 39mm case dimension, a more substantial bracelet, screw-down crown, and sweeping seconds hand.
- Condition: Like new with warranty
- Warranty left: ~1 year and 2.5 months
- Bracelet size: 7.25"
- Case dimensions: 39mm diameter
Audemars Piguet Royal Oak Jumbo 16202BA.OO.1240BA.02 Royal Oak Champagne Dial
The Audemars Piguet Royal Oak Jumbo Extra-Thin reference 16202BA.OO.1240BA.02 is a distinguished timepiece that pays homage to the original Royal Oak design while incorporating modern advancements.
- Material: 18-carat yellow gold
- Case size: 39 mm
- Movement: self-winding Calibre 7121
1970s Audemars Piguet 8638BA Royal Oak 29mm 18K Yellow Gold with Service Receipt
This is a 1970s Audemars Piguet Royal Oak in 18K yellow gold with a grey dial, measuring 29mm in case size. It comes with service receipts and has been well-maintained.
- Condition: Very Good
- Case Size: 29mm
- Material: 18K Yellow Gold
- Dial Color: Grey

2005 Audemars Piguet Royal Oak 15300ST White Dial - Box and Papers
The Royal Oak, with its 39mm case size, is a perfect and wearable size. The white and steel case has clean aesthetics.
- Case Size: 39mm diameter
- Bracelet Fits: up to 7.5 inch wrist
- Movement Status: running fantastic

Audemars Piguet Royal Oak Selfwinding White Dial Steel FULL SET MINT 15500ST
The watch features a clean white dial with a Grande Tapisserie pattern, stainless steel case, and brushed stainless steel bezel. It presents itself in mint condition with little to no signs of wear.
- Condition: Mint condition
- Case size: 40mm diameter
- Water resistance: 50m depth rating
- Movement: Selfwinding movement

Audemars Piguet Royal Oak Selfwinding Silver Pink Gold FULL SET MINT 77450SR
The Audemars Piguet Royal Oak Selfwinding features a harmonious blend of stainless steel and 18k pink gold, showcasing a silver-toned dial with the iconic Grande Tapisserie pattern. It presents itself in mint condition with little to no signs of wear, and is water proof up to 50 meters.
- Condition: Mint
- Case material: Stainless Steel
- Dial color: Silver
- Bezel material: 18k Pink Gold
Audemars Piguet Royal Oak Offshore 26470ST.OO.A028CR.01.A
The watch is a Royal Oak Offshore model, nicknamed "Batman" and features a stainless steel bracelet and original leather strap.
- Condition: Excellent with light scratches on bezel
- Warranty: until 2/13/26
- Boxes: includes boxes, papers, tag, warranty card
- Travel case: will include travel case
Audemars Piguet Royal Oak - 4100BA - Grey - Yellow Gold - 34mm - Excellent
This is a vintage Audemars Piguet Royal Oak watch with a grey dial and yellow gold case. It features an automatic movement and has been graded excellent.
- Condition: Pre-Owned
- Case size: 34mm diameter
- Material: Yellow Gold
- Bracelet type: Gold