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 41mm Blue Dial 15500ST � 2021
This is an unpolished Audemars Piguet Royal Oak 41mm Blue Dial watch that features a sought-after blue dial. It comes with boxes, booklets, warranty card, and was originally sold in October 2021.
- Condition: Excellent, with a few faint hairlines and marks on the case, small marks and swirls on the bracelet, and light marks and hairlines on the brushed face.
- Case size: 41mm
- Diameter: 41mm

Audemars Piguet Royal Oak Offshore Chronograph BumbleBee 26176FO � Box & Papers
This Audemars Piguet Royal Oak Offshore Chronograph is a BumbleBee version with a carbon fiber case and black and yellow dial, featuring protective aftermarket stickers on the case.
- Condition: Excellent
- Material: Carbon fiber
- Diameter: 44mm
- Depth rating: 100m

2001 Audemars Piguet 14790ST Military Dial Royal Oak
This 2001 Audemars Piguet Royal Oak features a 36mm stainless steel case with a matte military black dial and soft creme colored markers and hands.
- Case size: 36mm
- Case material: stainless steel
- Bezel finish: longitudinal satination with highly polished chamfer
Audemars Piguet 18K YG Royal Oak 14700 Grey Dial with Box
This Audemars Piguet Royal Oak 14700 features a grey petite tapisserie dial and an 18k yellow gold case with beveling. It comes with the original box and is in excellent condition, showing little wear for its age.
- Condition: Excellent
- Case material: 18K Yellow Gold
- Bracelet length: 21 links
- Bracelet size: up to 19.1 cm / 7.5 inches

Audemars Piguet Royal Oak 15500
A Royal Oak from 2022 with a black dial, featuring a light scratch and small ding on the case.
- Condition: Very good condition, unpolished
- Size: 41mm diameter
- Year: 2022

1986 Audemars Piguet 56175TR Tantalum Royal Oak
This 1986 Audemars Piguet Royal Oak features a 33mm x 5.8mm tantalum and rose-gold case with longitudinal satination, a rose-gold bezel, and a tantalum dial with rose gold indices and hands.
- Case size: 33mm diameter
- Case material: tantalum and rose-gold
- Bezel material: rose-gold

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Titanium 26407TI
This timepiece features a skeleton dial that reveals the impressive tourbillon and chronograph complications, highlighted by vibrant orange accents. The sandblasted finish on both the case and bezel gives the watch a matte look.
- Condition: Mint condition
- Case Material: Sand Blasted Titanium
- Dial Type: Skeletonized dial
- Band Type: Black rubber strap with titanium pin buckle