Audemars Piguet Royal Oak 23 mm: what to check on a used piece

Audemars Piguet Royal Oak 23 mm is the reference in this note. Inspect the crown and the case flank as a pair. The crown should sit centered between the guards, and the guards should be the same height. A guard that is shorter has been filed or knocked. The tube around the crown should not show a pale ring of bare metal unless the whole flank is brushed the same way. Run a fingernail along the lug top. Sharp edges that suddenly go round are a polish job. Polishing is common on a used case and it changes the shape, so describe it instead of ignoring it. Open the clasp and read any numbers stamped inside. They will not always match a serial you hoped to see. Write what is there. Look at the end links for a gap at the case and for screws that are chewed. A chewed screw means the bracelet was removed with the wrong tool. That is a useful fact about the life of the piece. It is not a reason to invent a story about the rest of the watch.

How it differs

Audemars Piguet Royal Oak 23 mm uses an integrated bracelet, so the end links are part of the case design. Look for a step or a gap where the bracelet meets the lug. Screws on the bezel, if the design has them, should be the same size and the same slot condition. People change bracelets by swapping the whole assembly, and they change screws. Mismatched screw slots are the tell.

What to check on a used piece

What to check on a used Audemars Piguet Royal Oak 23 mm starts with the engraving. Measure the case. Listings often say 23 mm, and the ruler is the check. Then check end-link play, clasp fold, and whether the hands pass each other. There is no price in this note.

Common mods

Common changes are a replacement bracelet, a polished center link, and bezel screws that were removed and put back. Look at the screw slots under a lamp. Different slot widths mean different screws.

What people change

On the Audemars Piguet Royal Oak 23 mm, people change the bracelet, the case, or the movement.