Audemars Piguet Royal Oak Selfwinding 41mm 15500ST.OO.1220ST.01

Blue Grande Tapisserie dial Royal Oak with the integrated steel bracelet. Retail is theoretical; this is the real market.

A 2021 Royal Oak 15500ST with the blue Grande Tapisserie dial, complete with box and card. Steel Royal Oak allocation at authorised dealers is closed to virtually all buyers, so the published retail figure is not a price a normal client can transact at. This example is in excellent condition with the factory alternating brushed and polished case facets fully intact — a critical detail, because a polished Royal Oak case loses its defining geometry permanently and cannot be restored.

Specification

Condition report

Case: excellent, alternating brushed and polished facets fully intact with no evidence of refinishing; bezel screws correctly aligned.

Bezel: octagonal bezel with sharp chamfers and factory finish; all eight hexagonal screws unmarked.

Crystal: original sapphire, unmarked.

Dial: blue Grande Tapisserie dial flawless with crisp waffle pattern; applied white gold indices perfectly seated.

Bracelet: integrated steel bracelet with minimal stretch, all links original, full link set supplied.

Movement: calibre 4302 running +2 seconds per day, 70-hour reserve confirmed.

Authentication

Caseback opened and calibre 4302 confirmed with correct Cotes de Geneve finishing, 22k gold oscillating weight, and matching case/movement numbers. Card cross-referenced against serial. Tapisserie dial pattern examined at 40x for correct pyramid geometry and pitch — a common failure point in counterfeits. Bracelet link construction, screw type, and clasp stamping verified. Case facet geometry measured to confirm no aftermarket polishing.

Pricing rationale

Published retail is HK$268,000, but steel Royal Oak allocation is effectively unavailable, so retail is not an achievable transaction price for a new client. Completed sales for full-set 15500ST examples in Excellent condition ran HK$545,000–HK$625,000 over the last ninety days. We are priced at HK$580,000, mid-band, supported by an unpolished case with intact factory facets. We will state plainly that this reference corrected sharply from its 2022 peak and may correct further; buy it because you want to wear it, not because you expect the 2021–22 trajectory to resume.

Service history

No service required — factory lubrication within specification. Regulated and pressure tested at our bench in August 2026.

Authentication ref. MH-AUTH-24115 — Marcus Leung, WOSTEP-trained (Head Watchmaker) (2026-08-22)

Comparable market range: HK$545,000 – 625,000 (90-day completed sales)

Originality: Original, Original, Original, Original, Original, Original.

Backed by a 24-month written mechanical warranty, 14-day unworn returns and free insured worldwide shipping from our Hong Kong studio.