N1Factory Edition — Two-Tone Steel & 18K Gold Bracelet
The N1Factory execution of the Seamaster Diver 300M Chronograph stands as a benchmark for two-tone replicas, primarily due to its advanced Ceragold™ replication. By integrating 18K yellow gold directly into the molecular structure of the blue ceramic bezel, the factory achieves a flush, highly durable scale that resists peeling. Weighing a substantial 226g, this piece accurately captures the imposing wrist presence of the genuine flagship model.
At the core of this reference is the clone 9900 chronograph caliber. Unlike standard modular chronographs, this movement successfully replicates the genuine Co-Axial Master Chronometer architecture by integrating both the 12-hour and 60-minute hands into a single subdial at 3 o’clock. Power reserve is rated at approximately 36 hours.
The 44mm case is crafted from 316L stainless steel accented with 18K yellow gold plating on the crown, helium escape valve, and pushers. The blue polished ceramic dial features precise laser-engraved wave patterns, complemented by skeletonized 18K gold hands that offer excellent contrast and low-light legibility.
- Movement: Clone 9900 Chronograph Caliber — Approximately 36 hours
- Case Material: 316L Stainless Steel & 18K Yellow Gold Plating, 44mm diameter, 226g
- Bezel: Blue ceramic with molecularly integrated 18K Ceragold™ diving scale
- Crystal: Imported sapphire crystal with colorless anti-reflective coating
- Bracelet: Two-tone 316L steel and 18K yellow gold plated, deployant clasp
- Water Resistance: 30m stated — professional pressure test recommended before swimming
This substantial chronograph is designed for the collector who demands mechanical complexity and the assertive aesthetic of a heavy, two-tone sports watch.


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