这是附加信息
Specificities
| 
 Reference Number  | 
 25820ST.OO.0944ST.04  | 
| 
 Case Size  | 
 39mm x 49mm x 9.3mm  | 
| 
 Dial  | 
 Blue grey  | 
| 
 Hands  | 
 N/A  | 
| 
 Case Material  | 
 Stainless Steel  | 
| 
 Movement  | 
 Mechanical (Automatic)  | 
| 
 Bracelet Material  | 
 Stainless Steel  | 
| 
 Clasp Type  | 
 N/A  | 
| 
 Functions  | 
 Transparent sapphire crystal back. movement with perpetual calendar, day, date, moon phases, month, and leap years  | 
| 
 Crystal  | 
 Sapphire  | 
| 
 Model  | 
 Royal Oak  | 
| 
 Water Resistance Rating  | 
 Water resistant to 20 m  | 
| 
 Box/Papers  | 
 Original Audemars Piguet Box and Papers  | 
| 
 Warranty  | 
 Balance of Audemars Piguet 2-year Warranty  | 
| 
 Country/Region of Manufacture  | 
 Switzerland  | 
| 
 Display  | 
 Analog  |