Lot Provenance & Metallurgical Verification
The Rolex Day-Date 40 Iridescent Natural Mother-of-Pearl Dial 18K White Gold Reference 228239 is an authenticated Geneva private vault allocation crafted in 18K White Gold Au750 (40.0 mm x 11.5 mm) weighing 210.5g on a calibrated Mettler-Toledo analytical scale, powered by Rolex Manufacture Cal. 3255 - 70h Power Reserve (+0.5 s/d, 300 deg, 28,800 vph, 72-hour power reserve) with a double anti-reflective sapphire crystal and 100m / 330 ft - Twinlock Screw-Down sealing.
| Lot Entity, Maison & Reference Code | Rolex — Oyster Perpetual Day-Date 40 | Ref. 228239 | SKU: VIP-AU750-228239-W481 |
|---|---|
| Precious Metal Assay & Hallmarked Alloy | 18K White Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| Certified Vault Scale Weight (1:1 Parity) | 210.5g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Gem-Setting & Case Proportions | Signature Rolex Fluted 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 210.5g 18K White Gold • 40.0 mm x 11.5 mm |
| Horological Calibre & Positional Regulation | Rolex Manufacture Cal. 3255 - 70h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 300 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 • 100m / 330 ft - Twinlock Screw-Down |
| Dial Provenance & Bracelet Clasp Architecture | 40.0 mm x 11.5 mm • Iridescent Natural Mother-of-Pearl Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K White Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Allocated within our Geneva Private Treaty Rolex collector vault, this Rolex Day-Date 40 Iridescent Natural Mother-of-Pearl Dial 18K White Gold Reference 228239 is crafted in 18K White Gold Au750 (40.0 mm x 11.5 mm) with a certified reference mass of 210.5g. 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: Rolex Day-Date 40 Iridescent Natural Mother-of-Pearl Dial 18K White Gold — Official Reference 228239 (SKU VIP-AU750-228239-W481).
- Vault Metallurgy: 18K White Gold Au750 construction paired with Signature Rolex Fluted 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal and Iridescent Natural Mother-of-Pearl Dial with Solid 18K Gold Applied Hour Markers & Hands.
- Authenticated Mass: 210.5g verified on a calibrated Mettler-Toledo analytical balance in 4K video.
- Movement Architecture: Rolex Manufacture Cal. 3255 - 70h Power Reserve running at 28,800 vph (4 Hz) with 72-hour power reserve (+0.5 s/d, 300 deg).
- Crystal & Security: Double anti-reflective sapphire crystal, 100m / 330 ft - Twinlock Screw-Down water resistance, and confidential escrow settlement.
Within the same Rolex horological silo, collectors also compare the Rolex Cosmograph Daytona 18K Everose Gold Sapphire Caseback Spec Ref. 126505 (216.1g) and the Rolex GMT-Master II 18K Everose Gold Deep Crystal Optics Ref. 126715CHNR (225.8g).
How do I initiate a Private Treaty acquisition for Rolex Ref. 228239?
Select your wrist circumference and request an allocation via our Geneva Private Client Desk (+1 305 724 0661) referencing SKU VIP-AU750-228239-W481. 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 Rolex Ref. 228239?
This reference weighs 210.5g in 18K White Gold Au750 and is powered by the Rolex Manufacture Cal. 3255 - 70h Power Reserve beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.5 s/d, 300 deg).
Rolex Day-Date 40 Iridescent Natural Mother-of-Pearl Dial 18K White Gold Ref. 228239 — Private Vault Edition
Geneva Private Treaty Vault • 210.5g 18K White Gold Au750 • Rolex Manufacture Cal. 3255 - 70h Power Reserve