Rolex Super Clone Watches 1:1 DateJust m278384rbr-0010 Jubilee 31MM 2236 Movement

Original price was: $850.00.Current price is: $750.00.

ARF Edition — Jubilee Bracelet

The ARF iteration of the 31mm Datejust reference 278384RBR stands as a benchmark in mid-size replica production. Known across horological forums for their superior 904L Oystersteel finishing, ARF successfully replicates the delicate proportions of the 31mm Oyster case. The cubic zirconia-set bezel is precisely machined to reflect the authentic gem-setting techniques found on the genuine article.

At the core of this model is the Clone 2236 self-winding movement, specifically engineered to fit the compact 31mm architecture. Unlike generic ETA clones, this caliber mimics the genuine crown-setting positions and date change mechanism. Per our technical evaluation, the power reserve yields approximately 36 hours on a full wind.

The 31mm monobloc middle case is forged from premium 904L Oystersteel, delivering the exact heft and tactile feel of the authentic piece. The dial, featuring a striking mint green tone, showcases crisp typography and correctly magnified date optics via the sapphire Cyclops lens. The Jubilee bracelet exhibits excellent lateral flexibility with tightly toleranced solid end links.

  • Movement: Clone 2236 — Approximately 36 hours
  • Case Material: 904L Oystersteel, 31mm diameter, 10.2mm thickness, 80g weight
  • Bezel: Stainless steel set with cubic zirconia, mimicking factory diamond specifications
  • Crystal: Scratch-resistant sapphire with 2.5x Cyclops magnification
  • Bracelet: 904L Oystersteel Jubilee with folding Oysterclasp
  • Water Resistance: 50 Meters — professional pressure test recommended before swimming. Do not operate chronograph pushers or the crown while the watch is submerged.

This mid-size Datejust caters to collectors seeking an elegant, formal-leaning profile that fits smaller wrists. Its meticulous gem-set bezel and refined dial make it a sophisticated mechanical alternative for daily wear.

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Description

ARF Rolex DateJust 31 Ref. 278384RBR Jubilee

A highly precise 31mm execution featuring ARF’s signature 904L steel finishing and a dedicated Clone 2236 caliber.

Powered by Clone 2236

The mechanical core of this 31mm Datejust is the Clone 2236, a caliber developed specifically to accommodate the smaller case dimensions without sacrificing reliability. Unlike standard ETA 2824 adaptations, this movement features correct crown stem heights and instantaneous date jumping at midnight. Before dispatch, all mechanical components are verified through our strict QC standards to ensure proper amplitude and beat error tolerances.

⏱ Accuracy Profile:

The Clone 2236 typically yields an accuracy of ±10–15 seconds per day, operating at a 28,800 vph beat rate.

  • ✅ Power Reserve: Approximately 36 hours
  • ✅ Complications: Instantaneous date with rapid setting, stop-seconds for precise time setting
  • ✅ Winding Direction: Bidirectional self-winding via perpetual rotor

Technical Specifications

THE BUILD904L Oystersteel Monobloc Case

Measuring exactly 31mm in diameter and 10.2mm thick, the case profile mirrors the genuine article, complete with high-polish flanks and a screw-down case back.

THE DIALMint Green Sunray Finish

The dial exhibits a refined sunburst effect, complemented by Chromalight-filled applied indices and sharp, correctly weighted text printing.

THE BEZELCZ Diamond-Set Bezel

The fixed bezel is intricately set with cubic zirconia stones, precisely aligned to replicate the light play of a factory diamond bezel.

THE BRACELET904L Jubilee with Oysterclasp

Features five-piece solid links with alternating brushed and polished finishes. The folding Oysterclasp snaps securely with minimal endplay.

Why ARF for This Reference?

Many collectors ask: ‘Why not GMF or BPF?’

While GMF produces a reliable 31mm Datejust, ARF remains the undisputed leader in 904L steel processing and bracelet fabrication. The tactile feel of the ARF Jubilee bracelet, combined with the incredibly tight tolerances of the solid end links against the 31mm case, provides a wearing experience that rival factories struggle to match.

Full Disclosure: The Clone 2236 rotor can be slightly more audible than the genuine caliber during rapid wrist movements, a common trait in compact clone movements.

LIVE PREVIEW

Data Sheet

MODEL REFERENCE 278384RBR
FACTORY / VERSION ARF V2
MOVEMENT Clone 2236
CASE MATERIAL 904L Oystersteel
WEIGHT & THICKNESS 80g | 10.2mm
CRYSTAL & LUME Sapphire with 2.5x Cyclops | Chromalight
DIMENSIONS 31mm × 37mm × 10.2mmManual measurements — minor tolerances apply.
WATER RESISTANCE 50 Meters — professional pressure test recommended before swimming

Collector Q&A

Q: Is the diamond bezel on this ARF 278384RBR made of real diamonds?

A: No, the ARF factory uses high-quality cubic zirconia (CZ) stones to simulate the genuine factory-set diamonds. They are cut and set to reflect light similarly to the authentic piece, but they are not genuine moissanite or natural diamonds.

Q: How accurate is the Clone 2236 movement in this 31mm case?

A: The Clone 2236 operates at 28,800 vibrations per hour (vph) and typically yields an accuracy of ±10–15 seconds per day out of the box. It is specifically designed to fit the 31mm mid-size case while maintaining correct date-jump mechanics.

Q: Does the Jubilee bracelet fit genuine Rolex spring bars?

A: Yes, ARF is renowned for its precise 904L Oystersteel fabrication, and the end-link tolerances on this 31mm model allow for the installation of genuine Rolex spring bars without modification.

Q: Is the winding rotor noisy on this specific caliber?

A: As with many compact clone movements, the 2236 can exhibit slight rotor noise when the wrist is flicked rapidly. A light application of Moebius 9010 oil during a standard movement service mitigates this issue entirely.

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Rolex Super Clone Watches 1:1 DateJust m278384rbr-0010 Jubilee 31MM 2236 Movement

Original price was: $850.00.Current price is: $750.00.