25820SP Audemars Piguet Royal Oak Perpetual Calendar

25820SP-Audemars-Piguet-Royal-Oak-Perpetual-Calendar

Any Royal Oak without brushing on the top of its bezel is serious business. At a glance, it almost looks wrong to have a fully mirror-finished bezel. But it isn’t wrong, it’s platinum. And it’s very likely to be a vintage QP. The evolution of the Royal Oak QP is quite a complex and nuanced…

Read More