The Audemars Piguet Royal Oak Perpetual Calendar reference 26574ST.OO.1220ST.01 was introduced in 2015. At 41mm, its case is slightly larger than its predecessors. Accordingly, the self-winding caliber 5134 is slightly larger as well – plus a week number indicator has been added. In this configuration, case and bracelet are stainless steel; the dial is silver and features the famous ‘Grande Tapisserie’ pattern.
Case
| Material: |
Stainless Steel |
| Glass: |
Sapphire |
| Back: |
Open |
| Shape: |
Other |
| Diameter: |
41.00 mm |
| Height: |
9.50 mm |
| W/R: |
20.00 m |
Dial
| Color: |
Silver |
| Indexes: |
Stick / Dot |
| Hands: |
Stick |
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