Rolex Super Clone Watches 1:1 DateJust m278383rbr-0020 Jubilee 31MM 2236 Movement

ARF Rolex DateJust 31 Ref. 278383RBR Two-Tone Jubilee

The ARF 278383RBR excels in its execution of the 31mm Oyster case and Jubilee bracelet tolerances, offering a highly capable mid-size alternative.

Powered by Clone 2236 Movement

The mechanical core of this 31mm DateJust is the clone 2236 caliber, specifically designed to fit the reduced inner diameter of mid-size cases without compromising the date wheel layout. It features a bidirectional winding module and a high-beat escapement operating at 28,800 vibrations per hour. Each movement is evaluated against to ensure reliable amplitude and beat error out of the box.

• �� Power Reserve: Approximately 36 hours
• �� Complications: Instantaneous date with rapid setting, stop-seconds
• �� Winding Direction: Bidirectional

Technical Specifications

Why ARF for This Reference?

Many collectors ask: ��Why not GMF?��

While GMF produces excellent mid-size models, the ARF version is frequently chosen for its superior Jubilee bracelet tolerances. The end-link fitment against the 31mm case is noticeably tighter on the ARF, significantly reducing bracelet stretch and endplay out of the box.

Full Disclosure: The 18k yellow gold plating tone on the center links may appear slightly warmer than solid gold under direct fluorescent lighting, and the clone 2236 rotor can be faintly audible during rapid wrist movement.

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Data Sheet

Collector Q&A

Q: Does the clone 2236 movement in this 31mm model accept genuine Rolex dial and hands?

A: While the outer diameter of the clone 2236 is similar to the genuine, the hand pinion heights and dial foot positions may require modification. It is not a direct drop-in replacement for standard ETA parts or genuine components without a specialized movement ring and skilled horological adjustment.

Q: How durable is the 18k yellow gold plating on the ARF Jubilee bracelet?

A: ARF utilizes a PVD plating process that is reasonably robust for daily wear. However, it is a surface treatment; deep scratches on the center links or the folding Oysterclasp will reveal the underlying 904L Oystersteel.

Q: Are the stones on the 278383RBR bezel moissanite or cubic zirconia?

A: The factory utilizes high-grade cubic zirconia (CZ) for the bezel setting. While they offer excellent light dispersion under natural lighting, they do not test as diamonds on a thermal tester.

Q: Is there noticeable rotor noise on this specific ARF 2236 movement?

A: Yes, a common quirk of the compact clone 2236 caliber is a slightly audible rotor spin during rapid wrist movements. This can be mitigated by a watchmaker through proper application of Moebius 9010 oil to the rotor bearings.

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