GS Factory Edition — Jubilee Bracelet
The Rolex DateJust 31 Ref. 278384RBR represents a specific horological niche, and GS Factory has established itself as the primary manufacturer for this mid-size platform. While tier-one factories often prioritize 36mm and 41mm models, this release delivers a specialized 31mm case architecture with correct gem-set bezel proportions.
Powered by the clone 2236 caliber, this movement is specifically scaled down to fit the 31mm case without relying on oversized spacer rings. It operates with a bidirectional winding module and, in accordance with current replica movement constraints, yields approximately 36 hours of power reserve. The integration of the 2.5x Cyclops lens over the instantaneous date mechanism functions crisply.
Forged from 904L Oystersteel, the case measures exactly 31mm in diameter with a verified thickness of 11.2mm, matching the genuine profile. The forest green dial exhibits a sunburst finish that responds well to ambient light, paired with a simulated diamond-set bezel that captures the essence of the RBR designation.
- Movement: Clone 2236 Caliber — Approximately 36 hours
- Case Material: 904L Oystersteel, 31mm diameter, 79g overall weight
- Bezel: Simulated gem-set (CZ), visually accurate to standard lighting
- Crystal: Sapphire with 2.5x Cyclops magnification
- Bracelet: 904L Jubilee, alternating brushed/polished, Folding Oysterclasp
- Water Resistance: 50 Meters — professional pressure test recommended before swimming
Designed for collectors seeking a mid-size profile, this piece balances elegance with robust 904L construction. It serves as an excellent daily wearer for smaller wrists where traditional 36mm cases feel overwhelming.


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