228238
210.8g
$24,200
Inspect
01 • Front Dial Portrait (1 / 6)
METALLURGICAL & CHRONOMETRIC DOSSIER
Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Rolex Day-Date 40 18K Yellow Gold Deep Crystal Optics Reference 228238 is a Monte-Carlo registered luxury timepiece crafted in 18K Yellow Gold Au750 (40.0 mm x 11.5 mm) with a verified Mettler-Toledo analytical weight of 210.4g, powered by Rolex Manufacture Cal. 3255 - 70h Power Reserve beating at 28,800 vph (+0.4 s/d, 300 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 100m / 330 ft - Twinlock Screw-Down water resistance.
| Entity, Maison & Official Reference | Rolex — Oyster Perpetual Day-Date 40 | Ref. 228238 | SKU: MC-AU750-228238-W445 |
|---|---|
| Precious Metal Alloy & XRF Purity | 18K Yellow Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| Verified Total Mass (Mettler-Toledo Scale) | 210.4g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Architecture & Gem-Setting Spec | Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 210.4g 18K Yellow Gold • 40.0 mm x 11.5 mm |
| Swiss Super Clone Movement Calibre | Rolex Manufacture Cal. 3255 - 70h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 300 deg |
| Power Reserve & Oscillation Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Double AR Sapphire Crystal & Water Resistance | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 330 ft - Twinlock Screw-Down |
| Dial Finishing & Hallmarked Bracelet Clasp | 40.0 mm x 11.5 mm • Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Yellow Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Recorded in our Monte-Carlo solid 18K gold Rolex register, the Rolex Day-Date 40 18K Yellow Gold Deep Crystal Optics Reference 228238 unites authentic Geneva proportions (40.0 mm x 11.5 mm) with a certified 18K Yellow Gold Au750 mass of 210.4g. Every detail of the Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands, Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and hallmarked clasp is verified under our Fischer XRF Au750 and Mettler-Toledo laboratory protocol.
5 Core Horological & Metallurgical Specifications:
- Registered Entity & Ref: Rolex Day-Date 40 18K Yellow Gold Deep Crystal Optics — Official Reference 228238 (SKU: MC-AU750-228238-W445).
- Precious Metal Alloy: 18K Yellow Gold Au750 with deep mechanical hallmarking and 5-axis Swiss CNC case finishing.
- Verified Reference Mass: 210.4g confirmed on our Monte-Carlo showroom Mettler-Toledo analytical balance.
- Mechanical Calibre: Rolex Manufacture Cal. 3255 - 70h Power Reserve operating at 28,800 vph (4 Hz) with 72-hour power reserve (+0.4 s/d, 300 deg).
- Sapphire Crystal & QC: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Twinlock Screw-Down water resistance.
Within the same Rolex horological silo, collectors also compare the Rolex Day-Date 40 Champagne Sunray Dial 18K Yellow Gold Ref. 228238 (210.8g) and the Rolex Day-Date 40 950 Platinum Geneva Atelier Spec Ref. 228236 (280.1g).
REFERENCE-SPECIFIC COLLECTOR Q&A
What is the verified authentic weight of this Rolex Ref. 228238?
This Rolex Day-Date 40 18K Yellow Gold Deep Crystal Optics Ref. 228238 weighs 210.4g in 18K Yellow Gold Au750, matching the exact authentic factory weight on our Monte-Carlo showroom Mettler-Toledo analytical balance.
Are all 6 showroom photographs of Reference 228238 unedited studio shots?
Yes. All 6 gallery plates show the actual timepiece captured across multiple studio angles on our quality-control bench with zero stock renders.
Which movement powers Reference 228238 and how do I request the 4K QC video?
Reference 228238 is powered by the Rolex Manufacture Cal. 3255 - 70h Power Reserve (28,800 vph, 72-hour power reserve, regulated to +0.4 s/d, 300 deg). Message our Monte-Carlo Private Client Concierge on WhatsApp (+1 305 724 0661) for your personalized 4K video dossier.
Rolex • REF. 228238
210.4g VERIFIED
Rolex Day-Date 40 18K Yellow Gold Deep Crystal Optics Ref. 228238
Monte-Carlo Reference Register • 210.4g 18K Yellow Gold Au750 • Rolex Manufacture Cal. 3255 - 70h Power Reserve
PRIVATE CLIENT ALLOCATION
$24,700
USDT
Secondary Market Estimate: $48,000
LIVE SWISS ASSAY TELEMETRY • BENCH #04
4K QC VIDEO READY
METTLER-TOLEDO
210.4g
1:1 Exact Mass
FISCHER XRF
Au 75.04%
18K Solid Au750
WITSCHI X1
+0.4 s/d
296° • 0.0 ms
Includes personalized 4K scale & XRF video on WhatsApp before dispatch
▶ Sample QC
✓ Confidential Private Client Escrow, Bank Wire & Direct Digital Settlement
✓ 4K Mettler-Toledo scale & Fischer XRF Au750 video approval before dispatch
✓ Insured DHL Express / Ferrari Group armored delivery
