GS Factory Edition — Jubilee Bracelet
The 31mm mid-size Datejust occupies a specific niche in horological replicas, and GS Factory’s execution of the reference 278383RBR addresses the historical lack of high-tier options in this diameter. By integrating a dedicated clone 2236 architecture, this edition maintains the correct case proportions and crown position without the thickness bloat often seen in modified ETA-based alternatives.
Driving the hands is the mechanical self-winding Clone 2236 caliber, designed to replicate the operational feel of the genuine movement. It features a stop-seconds mechanism for precise synchronization and an instantaneous date complication. Power delivery is linear, yielding a practical reserve suitable for regular rotation.
The two-tone Oystersteel and 18k yellow gold-plated case measures exactly 31mm, paired with a meticulously aligned diamond-set bezel. The dial features an olive green tone that accurately shifts under varying light conditions, viewed through a sapphire crystal with a correctly magnified Cyclops lens.
- Movement: Clone 2236 — Approximately 36 hours
- Case Material: Oystersteel with 18k yellow gold plating, 31mm diameter
- Bezel: Diamond-set bezel, precise CNC prong alignment
- Crystal: Sapphire with 2.5x magnification Cyclops lens
- Bracelet: Two-tone Jubilee, Folding Oysterclasp
- Water Resistance: 50 Meters — professional pressure test recommended before swimming
This reference is tailored for collectors seeking a mid-size profile with gem-set characteristics. It serves as a highly capable mechanical alternative for formal settings where a 36mm or 41mm case would be disproportionate.



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