Lot Provenance & Metallurgical Verification
The Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Reference 26331ST.OO.1220ST.01 is an authenticated Geneva private vault allocation crafted in 904L Stainless Steel Custom Architecture (41.0 mm x 12.4 mm) weighing 180.3g on a calibrated Mettler-Toledo analytical scale, powered by Audemars Piguet Cal. 2385 Column-Wheel Chronograph (+0.8 s/d, 296 deg, 28,800 vph, 72-hour power reserve) with a double anti-reflective sapphire crystal and 50m / 5 ATM sealing.
| Lot Entity, Maison & Reference Code | Audemars Piguet — Royal Oak Selfwinding Chronograph 41mm | Ref. 26331ST.OO.1220ST.01 | SKU: VIP-CUST-26331ST.OO.1220ST.01-W189 |
|---|---|
| Precious Metal Assay & Hallmarked Alloy | 904L Stainless Steel Custom Architecture — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| Certified Vault Scale Weight (1:1 Parity) | 180.3g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Gem-Setting & Case Proportions | Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal • 180.3g 904L Steel Edition • 41.0 mm x 12.4 mm |
| Horological Calibre & Positional Regulation | Audemars Piguet Cal. 2385 Column-Wheel Chronograph — Swiss Super Clone Mechanical Calibre Regulated to +0.8 s/d, 296 deg |
| Power Reserve Autonomy & Beat Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Sapphire Crystal Optics (Double AR) & Hermeticity | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 50m / 5 ATM |
| Dial Provenance & Bracelet Clasp Architecture | 41.0 mm x 12.4 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |
Allocated within our Geneva Private Treaty Audemars Piguet collector vault, this Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Reference 26331ST.OO.1220ST.01 is crafted in 904L Stainless Steel Custom Architecture (41.0 mm x 12.4 mm) with a certified reference mass of 180.3g. Every private treaty allocation undergoes Fischer XRF Au750 purity and Mettler-Toledo gravimetric grading prior to insured armored dispatch.
5 Core Private Vault Allocation Specifications:
- Private Vault Reference: Audemars Piguet Royal Oak Selfwinding Chronograph 41mm — Official Reference 26331ST.OO.1220ST.01 (SKU VIP-CUST-26331ST.OO.1220ST.01-W189).
- Vault Metallurgy: 904L Stainless Steel Custom Architecture construction paired with Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal and Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands.
- Authenticated Mass: 180.3g verified on a calibrated Mettler-Toledo analytical balance in 4K video.
- Movement Architecture: Audemars Piguet Cal. 2385 Column-Wheel Chronograph running at 28,800 vph (4 Hz) with 72-hour power reserve (+0.8 s/d, 296 deg).
- Crystal & Security: Double anti-reflective sapphire crystal, 50m / 5 ATM water resistance, and confidential escrow settlement.
Within the same Audemars Piguet horological silo, collectors also compare the Audemars Piguet Royal Oak Jumbo Extra-Thin 39mm Geneva Atelier Spec Ref. 15202ST (103.6g) and the Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Free-Sprung Calibre 5-Axis CNC Case Ref. 15407ST.OO.1220ST.01 (162.1g).
How do I initiate a Private Treaty acquisition for Audemars Piguet Ref. 26331ST.OO.1220ST.01?
Select your wrist circumference and request an allocation via our Geneva Private Client Desk (+1 305 724 0661) referencing SKU VIP-CUST-26331ST.OO.1220ST.01-W189. A dedicated vault director will transmit your live 4K scale, XRF, and timegrapher dossier.
What settlement methods are supported for Private Vault allocations?
18K VIP facilitates confidential private client settlement via International Bank Wire (SWIFT / SEPA), Private Escrow, and Direct Digital Asset Settlement (USDT, USDC, BTC, ETH) with insured courier delivery.
What is the verified weight and calibre specification of this Audemars Piguet Ref. 26331ST.OO.1220ST.01?
This reference weighs 180.3g in 904L Stainless Steel Custom Architecture and is powered by the Audemars Piguet Cal. 2385 Column-Wheel Chronograph beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.8 s/d, 296 deg).
Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Ref. 26331ST.OO.1220ST.01 — Private Vault Edition
Geneva Private Treaty Vault • 180.3g 904L Stainless Steel Custom Architecture • Audemars Piguet Cal. 2385 Column-Wheel Chronograph