THB Factory Audemars Piguet Royal Oak 15407OR Openworked
A highly capable execution of the Calibre 3132, offering proper balance wheel placement and a remarkably accurate 9.6mm case profile.
Powered by Custom Calibre 3132 Clone
The beating heart of this replica is a custom-engineered clone of the AP Calibre 3132. Unlike previous market iterations that utilized standard Miyota or ETA bases obscured by decorative plates, this THB Factory movement features a true integrated architecture. This design allows for the functional balance wheel to be prominently and correctly displayed at the 8 o’clock position. The skeletonized bridges are machine-brushed to mimic the haute horlogerie finishing of the genuine, providing a clear view of the gear train in synchronized motion.
⏱ Accuracy Profile:
Regulated to ±10–15 seconds per day. The custom balance wheel operates with consistent amplitude when fully wound, though long-term stability requires standard mechanical servicing intervals.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Hours, minutes, and sweep seconds via openworked display
- ✅ Winding Direction: Bidirectional automatic winding
Technical Specifications
THE BUILD18K Gold Plated Stainless Steel
Precisely machined to an ultra-thin 9.6mm thickness with a verified weight of 166.3g. The case exhibits correct brushed and polished alternating finishing across the octagonal geometry.
THE DIALOpenworked Skeleton Display
Features sharp printing on the inner rehaut and precise lume application on the handset. The exposed golden gears contrast cleanly against the darker structural bridges.
THE BEZEL18K Gold Plated Octagonal
Vertical brushing aligns perfectly with the case, secured by eight recessed, polished hexagonal screws that sit flush against the bezel surface.
THE BRACELETIntegrated Tapered Bracelet
Solid links with excellent endplay tolerances. The chamfered edges are highly polished, contrasting with the flat brushed surfaces, secured by an AP folding clasp.
Why THB Factory for This Reference?
Many collectors ask: “Why not APSF?”
While APSF is the undisputed benchmark for standard 15500 and 15400 models, the skeletonized 15407 requires specialized movement architecture. THB Factory invested in a custom Calibre 3132 clone specifically to achieve the exact 9.6mm thickness and the correct 8 o’clock balance wheel placement, avoiding the visual tells of modified base movements.
Full Disclosure: Under loupe inspection, the anglage (beveling) on the movement bridges is machine-finished and lacks the microscopic hand-polished gleam of a genuine Audemars Piguet caliber. Furthermore, while the 166.3g weight is substantial, it cannot replicate the dense heft of solid 18K gold.
Data Sheet
| MODEL REFERENCE |
Royal Oak 15407OR Openworked |
| FACTORY / VERSION |
THB Factory Edition |
| MOVEMENT |
Custom Calibre 3132 Clone |
| CASE MATERIAL |
18K Gold Plated Stainless Steel |
| WEIGHT & THICKNESS |
166.3g | 9.6mm |
| CRYSTAL & LUME |
Sapphire with AR Coating | Standard Green Lume |
| DIMENSIONS |
41mm × 51mm × 9.6mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE |
50m Stated Rating — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the balance wheel actually function at the 8 o’clock position on this replica?
A: Yes, the THB Factory custom Calibre 3132 clone features an integrated architecture with a fully functional balance wheel operating precisely at the 8 o’clock position, accurately mirroring the genuine movement layout.
Q: How does the 9.6mm thickness compare to the genuine 15407OR?
A: The THB Factory edition measures exactly 9.6mm thick, which matches the genuine Royal Oak 15407’s ultra-thin profile. This avoids the excessive case bulk found in earlier skeleton replicas that used modified base movements.
Q: Is the 18K gold plating durable for daily wear?
A: While the 18K gold plating is applied via PVD for enhanced durability, it remains a surface treatment over stainless steel. Daily friction, especially on the bracelet clasp and sharp octagonal bezel edges, will eventually show wear. It is recommended for rotational wear.
Q: What is the most noticeable visual flaw on this THBF skeleton model?
A: Under macro inspection, the anglage (beveling) on the skeletonized movement bridges is machine-finished rather than hand-polished. Additionally, the verified 166.3g weight, while substantial for a replica, falls noticeably short of the heavy density of a solid 18K gold genuine piece.
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