The Basics
The Royal Oak Perpetual Calendar -Quantième Perpétuel- is a complicated take on AP’s iconic luxury sports watch. With the first iteration being introduced in 1983, it can be seen as a trailblazer for the complicated ‘sports’ watch genre. Reference 25820ST.OO.0944ST.04 has a stainless steel case and matching bracelet. The dial is dark blue.
| Brand: | Audemars Piguet |
| Family: | Royal Oak |
| Reference: | 25820ST.OO.0944ST.04 |
| Name: | Royal Oak Perpetual Calendar Stainless Steel / Dark Blue |
| Produced: | N/A |
| Limited: | No |
Below is a detailed look at Audemars Piguet’s model 25820ST.OO.0944ST.04 from Royal Oak watch family, including the price, case details and movement features.
The Details
Audemars Piguet’s Royal Oak Perpetual Calendar Stainless Steel / Dark Blue (25820ST.OO.0944ST.04) was originally released in N/A. This watch features a automatic movement beating at a frequency of 21600 bph ( 3 Hz) to provide a 40-hour power reserve when fully wound.
The Case
The stainless steel case measures 39mm in diameter and roughly 9.3mm thick. The N/A case is paired with a blue color dial with stick-shaped hands, and a stick / dot hour markers and minute track, covered by a sapphire glass. Audemars Piguet’s Royal Oak model 25820ST.OO.0944ST.04 is water resistant up to 20 meters (66 ft). A display caseback is over the back of the watch case.
| Material: | Stainless steel |
| Glass: | Sapphire |
| Back: | Display |
| Shape: | N/A |
| Diameter: | 39mm |
| Height: | 9.3mm |
| Lug Width: | N/Amm |
| W/R: | 20 |
Case Diameter
Case Thickness
Lug Width
Water Resistance
The Movement
The Royal Oak 25820ST.OO.0944ST.04 movement is a powered by caliber AP 2120 / 2802 made by Audemars Piguet. The 38-jewel automatic movement is 28.4mm in diameter. Its balance wheel oscillates at 21,600 semi-oscillations per hour or 3 Hz. This movement offers a 40-hour power reserve.
| Type: | Automatic |
| Brand: | Audemars Piguet |
| Caliber: | AP 2120 / 2802 |
| Base: | Audemars Piguet AP 2121 |
| Display: | Analog |
| Diameter: | 28.4mm |
| Jewels: | 38 |
| Reserve: | 40 hours |
| Frequency: | 21600 bph |
| Time: | Hours, Minutes |
| Chronograph: | |
| Additionals: |
The Price
How much does the Audemars Piguet’s Royal Oak 25820ST.OO.0944ST.04 cost? This watch was introduced in N/A and has been in Audemars Piguet’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.
CURRENT PRICE: $39,300 .
For more information, visit Audemars Piguet online.
Specifications:
- Brand: Audemars Piguet
- Model: Royal Oak Perpetual Calendar Stainless Steel / Dark Blue
- Reference Number: 25820ST.OO.0944ST.04
- Limited: No
Case & Dial:
- Material: Stainless steel
- Glass: Sapphire
- Back: Display
- Diameter: 39
- Thickness: 9.3
- Lug Width: N/A
- Dial Color: Blue
- Indexes: Stick / Dot and Stick-shaped hands
- Water Resistance: 20 meters
Movement:
- Winding: Automatic
- Brand: Audemars Piguet
- Caliber: AP 2120 / 2802
- Display: Analog
- Diameter: 28.4mm
- Jewels: 38
- Power Reserve: 40 hours
- Frequency: 21600 bph
- Functions: Hours, Minutes
About Audemars Piguet
Jules Louis Audemars and Edward Auguste Piguet met in 1874. The two watchmakers began working together, founding Audemars, Piguet et Cie, one year later in 1875. To this day, members of the two families sit on the board of directors for the company. This makes Audemars Piguet one of the oldest family-run manufactures.
View all Audemars Piguet watches.
Audemars Piguet Watches
Discover new luxury watches and watch brands for men and women from our database of over 20,000 watches across more than 100 different brands.