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Description
ARF Rolex Datejust 31 Ref. 278274-0005 MOP Dial
A clinically executed 31mm replica demonstrating ARF��s mastery of 904L steel tolerances and mid-size case proportions.
Powered by 2236 Clone Caliber
The mechanical foundation of this 31mm reference relies on the 2236 clone automatic movement. Engineering a reliable caliber for a reduced case diameter presents distinct challenges, yet this movement maintains appropriate date disc positioning and correct hand-stack clearances. The architecture allows for smooth sweeping of the seconds hand and reliable daily operation, evaluated through prior to dispatch. Winding action remains tactile and responsive.
Rated at 卤10��15 seconds per day. While not matching the stringent tolerances of larger Dandong movements, it provides adequate stability for daily wear.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Quick-set date mechanism
- �� Winding Direction: Bidirectional automatic winding
Technical Specifications
Measuring exactly 31mm in diameter with a 10.2mm thickness, the case exhibits appropriate brushed lug tops and polished flanks, matching the original profile.
Features genuine shell material yielding dynamic iridescence, set with cubic zirconia diamond hour markers. Text printing is crisp and properly weighted.
Machined from 904L steel with deep, sharp faceting to simulate the light reflection of white gold, maintaining excellent structural definition.
Solid 904L links with tight tolerances. The Oysterclasp engages securely with minimal endplay, highlighting ARF��s noted expertise in bracelet manufacturing.
Why ARF for This Reference?
Many collectors ask: ��Why not WF or GMF?��
While WF produces a high volume of 31mm models, AR Factory (ARF) is selected for its superior 904L steel finishing and bracelet articulation. The solid end links (SEL) on the ARF Oyster bracelet sit flush against the case with significantly tighter tolerances than its competitors, reducing the hollow rattle often found in mid-size replicas.
Full Disclosure: The fluted bezel is constructed from polished 904L steel. Under direct sunlight, it lacks the subtle, warmer yellowish undertone inherent to genuine 18k white gold.
Data Sheet
| MODEL REFERENCE | 278274-0005 |
| FACTORY / VERSION | AR Factory (ARF) |
| MOVEMENT | 2236 Clone Automatic |
| CASE MATERIAL | 904L Oystersteel |
| WEIGHT & THICKNESS | 89.3g | 10.2mm |
| CRYSTAL & LUME | Sapphire with Cyclops | No Lume (Diamond Markers) |
| DIMENSIONS | 31mm � ~37mm � 10.2mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the ARF Mother-of-Pearl dial compare to the genuine Rolex dial?
A: AR Factory utilizes natural shell material for the dial, which successfully replicates the dynamic iridescence and clouding of the genuine piece. Because natural materials are used, the specific pattern and color shift will vary from watch to watch, just as it does on retail models.
Q: Is the fluted bezel on this 31mm replica made of real white gold?
A: No. The bezel is machined from 904L stainless steel and heavily polished to simulate a white-gold finish. While the depth of the fluting is highly accurate, the steel reflects light with a slightly cooler, whiter tone compared to the warmer hue of genuine 18k white gold.
Q: What kind of stones are used for the diamond hour markers?
A: The hour markers are set with precisely cut cubic zirconia (CZ) crystals rather than genuine diamonds or moissanite. They provide adequate light refraction for daily wear but lack the intense brilliance of factory Rolex diamond settings under direct spotlighting.
Q: Are there any known quirks with the 2236 clone movement in this model?
A: The primary quirk of the 2236 clone caliber is rotor noise. Due to the smaller case architecture of the 31mm Datejust, the automatic winding rotor can produce a subtle whirring sound during vigorous wrist movement. This is a common characteristic of mid-size clone movements and does not affect timekeeping reliability.