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Description
ARF Rolex Datejust 31 Olive Green Diamond Dial 278383RBR
A technically proficient mid-size replica that prioritizes case proportions and bracelet articulation over superficial embellishments.
Powered by Clone 2236
The Clone 2236 movement is engineered specifically to accommodate the restrictive dimensions of the 31mm Oyster case. Unlike larger generic calibers that require extensive modification or thick spacer rings, this movement ensures the date disc aligns properly with the dial aperture and Cyclops lens. It utilizes a bidirectional winding module and a standard Swiss-lever escapement architecture, providing stable amplitude across various resting positions.
Rated at 卤10��15 seconds per day. While not matching the strict METAS or Superlative Chronometer standards of the genuine caliber, it maintains highly acceptable timing for daily wear.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Instantaneous date with rapid setting, stop-seconds
- �� Winding Direction: Bidirectional
Technical Specifications
The 31mm monobloc middle case features correct lug tapering and polished flanks, maintaining the delicate proportions required for a mid-size reference.
A precise olive green sunburst finish hosts applied diamond-set markers. The coronet at 12 o��clock and dial printing exhibit clean, sharp edges under macro inspection.
Fixed bezel set with synthetic diamonds. While lacking genuine VVS refraction, the stone setting is uniform and secure within the gold-plated prongs.
Five-piece links with polished gold-plated center links and brushed steel outer links. The concealed folding Oysterclasp snaps with reassuring tension.
Why ARF for This Reference?
Many collectors ask: ��Why not GMF?��
While GMF produces excellent mid-size models, ARF��s mastery of the 904L Jubilee bracelet��specifically the end-link fitment against the 31mm case��remains superior. The clasp tolerances and the articulation of the five-piece links provide a more authentic tactile experience, reducing the lateral play often found in smaller replica bracelets.
Full Disclosure: The 18k yellow gold plating tone leans slightly warmer than Rolex��s proprietary alloy, and the synthetic diamonds on the bezel lack the ultimate refractive index of factory gems.
Data Sheet
| MODEL REFERENCE | 278383RBR |
| FACTORY / VERSION | ARF Edition |
| MOVEMENT | Clone 2236 |
| CASE MATERIAL | 904L Oystersteel & 18k Yellow Gold Plated |
| WEIGHT & THICKNESS | [unconfirmed] | [unconfirmed] |
| CRYSTAL & LUME | Sapphire with 2.5x Cyclops | Chromalight (hands only) |
| DIMENSIONS | 31mm � [unconfirmed] � [unconfirmed]Manual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 50 Meters �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the Clone 2236 movement in this 31mm model accept genuine Rolex dial and hands?
A: While some dimensions align, the Clone 2236 has slight variations in hand pinion heights and dial foot positioning compared to the genuine caliber. Franken projects require modification to the dial feet.
Q: How accurate is the olive green dial color compared to genuine?
A: ARF has achieved a highly accurate sunburst effect and the correct deep olive tone. However, under direct, harsh lighting, the replica dial exhibits slightly more metallic reflection than the softer, more diffuse genuine Rolex finish.
Q: Is the gold plating on the Jubilee bracelet durable for daily wear?
A: The 18k yellow gold plating is applied via PVD over the 904L Oystersteel. While durable against standard friction, it is a surface treatment and will eventually show wear if exposed to abrasive chemicals, deep scratches, or ultrasonic cleaning.
Q: Are the diamonds on the bezel and dial genuine?
A: No. The factory utilizes high-quality cubic zirconia (CZ) or moissanite substitutes. While they provide excellent visual sparkle in standard lighting, they do not possess the identical refractive properties or hardness of the VVS diamonds used by Rolex.
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