Audemars Piguet Royal Oak Perpetual Calendar "150th Anniversary" 41 mm sapphire dial - 26585XT.OO.1220XT.01
| Brand | Audemars Piguet |
| Model | Royal Oak Perpetual Calendar "150th Anniversary" |
| Reference Number | 26585XT.OO.1220XT.01 |
| Production Year | 2025 |
| Box/Papers | Box & Papers |
| Case Material | Titanium |
| Case Size | 41 mm |
| Water Resistance | 20 meters |
| Dial Type | Sapphire dial |
| Dial Details | Blue counter surrounds, matching inner bezel, 18-carat white gold round hour-markers, blue bathtub hands filled with luminescent material |
| Bracelet | Integrated bracelet combining BMG studs with titanium links |
| Clasp | AP folding clasp |
| Movement | Selfwinding |
| Caliber | 5135 |
| Functions | Perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours, and minutes |
| Number of Jewels | 38 |
| Power Reserve | 40 hours |
| Total Diameter | 29 mm |
| Number of Parts | 374 |
| Frequency | 2.75 Hz (19,800 vph) |
| Movement Thickness | 4.5 mm |
| Warranty | Two-year warranty |
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