The Event — Lot 47, Auction House Thailand Sale 23
May 18, 2026 at Auction House Thailand Sale 23 — Lot 47: Audemars Piguet Royal Oak 15500CB white ceramic 41mm with original box, papers, and complete accessories — closed at ฿5,150,000.
This crosses the ฿5M ceiling for Royal Oak in the Thai auction market for the first time and sets a new benchmark for ceramic Royal Oak references.
Why White Ceramic Royal Oak Commands a Premium
1. Genuinely scarce supply
AP produces Royal Oak 15500CB white ceramic in very limited volume — roughly 200–250 pieces per year per AP Geneva documentation — versus Royal Oak steel 15500ST at 5,000–6,000 pieces per year.
2. Ceramic case production difficulty
White ceramic AP uses is zirconium oxide requiring a 6-week sintering process + tighter case dimension tolerance than steel — high production cost, 12–15% defect rate.
3. White color stays fresh permanently
Steel case hairline scratching from wear is a collector concern — scratch-resistant white ceramic "always looks new" — high appeal for collectors who actually wear.
4. Collector demand from Middle East and China
White ceramic Royal Oak is pursued by Saudi, UAE, and mainland Chinese collectors. Largest global supply is concentrated in Southeast Asian dealer allocation, making Bangkok a flow hub.
Auction Details
Lot 47 — Audemars Piguet Royal Oak Selfwinding 41mm 15500CB.OO.1220CB.01
- Year of production: 2024 (serial verified via AP Service Centre)
- Condition: A+ unpolished, no service yet
- Provenance: bought from AD Geneva 2024, 1 owner
- Complete: box, papers, 2 extra links, polishing cloth, complete sticker on case-back
- Pre-sale estimate: ฿4,200,000–฿4,800,000
- Hammer price: ฿4,950,000
- Buyer's premium: 22% (+ VAT)
- Total to buyer: ฿5,150,000
Buyer: private collector from Southeast Asia (Auction House Thailand undisclosed), bidding via phone.
White Ceramic 24-Month Price Trajectory in Thailand
| Period | Mid buy price | Change |
|---|---|---|
| May 2024 | ฿3,950,000 | — |
| Nov 2024 | ฿4,180,000 | +5.8% |
| May 2025 | ฿4,365,000 | +4.4% |
| Nov 2025 | ฿4,650,000 | +6.5% |
| May 2026 | ฿4,950,000 | +6.5% |
24-month gain: +25.3% — against the trend of Royal Oak steel 15500ST down 31.2% over the same period.
Royal Oak Family Comparison
| Reference | May 2026 price | YoY |
|---|---|---|
| 15500ST steel blue | ฿2,650,000 | -10.2% |
| 15510ST 50th anniv blue | ฿2,950,000 | -8.5% |
| 15202ST Jumbo | ฿5,400,000 | -6.9% |
| 15400OR rose gold | ฿4,250,000 | -7.2% |
| 15500CB white ceramic | ฿4,950,000 | +18.0% |
| 26579CE ceramic chrono | ฿8,250,000 | +12.4% |
| 16202 50th Jumbo (limited) | ฿7,850,000 | +3.6% |
White ceramic is the only Royal Oak reference appreciating over 12 months.
Market Implications for Royal Oak in Thailand
1. Impact on 15500CB white ceramic owners
- Current mid-market ~฿4.95M — Tier-1 dealer pays ~80–85% = ฿3.95M–฿4.20M
- Auction yields better than outright sale but takes 60–90 days and 22% buyer's premium deducts from seller
2. Impact on Royal Oak steel 15500ST
- Ceramic premium causes collectors with flexible budgets to pivot to ceramic first — steel demand softens
- Expected 15500ST price drop -3 to -5% additional in 2026
3. AP Royal Oak future demand
- AP began testing reference 16500 in late 2025 — if new reference uses ceramic option at 41mm standard size, 15500CB demand will adjust
- Buyers acquiring 15500CB pre-16500 to "lock in" pre-replacement premium drove 2025–2026 appreciation
Recommendations for Holders and Buyers
15500CB white ceramic holders:
- Peak price may be late 2026 before 16500 launch (expected early 2027)
- Selling in Q3–Q4 2026 via auction captures full premium
- Outright sale to dealer = ฿4.20M immediate vs auction net ฿4.65M in 60–90 days
Considering buying 15500CB:
- ฿4.95M = 76% premium over current ฿2.82M MSRP
- If buying to wear — accept premium as supply-scarcity cost
- If buying to invest — 16500 launch risk pulls demand
Holding 15500ST steel:
- Continued decline — consider selling and waiting for 16500 launch
- Or swap to 15500CB via trade-in (Thai Watch Market accepts trade-ins directly)
Send Royal Oak Photos for Evaluation
Send Royal Oak photos — especially ceramic, chronograph, or Jumbo — to LINE @thaiwatchmarket. Response within 15 minutes with:
- Bangkok outright buy price
- Hong Kong consignment price
- Auction House Thailand consignment estimate
- Timing recommendation
Sources:
- Auction House Thailand, Sale 23 results (May 18, 2026)
- Bangkok Real-Clearing Price Index: Royal Oak ceramic subsetThai transactions, 2024–2026)
- WatchCharts AP Index
- AP allocation data from Geneva annual production reports
- Khun Naru's authentication database — 14 Royal Oak ceramic pieces