3K Factory Edition — Integrated Steel Bracelet
The 3KF execution of the mid-size Nautilus 7118/1A represents a significant technical achievement, successfully housing a true clone movement within the strict 8.4mm case profile. Unlike earlier iterations relying on modified Miyota bases, this reference achieves the exact dimensions of the genuine article, making it a critical benchmark for collectors seeking the precise 35.2mm “Ladies Automatic” proportions without compromising on geometric accuracy.
Powered by the specifically engineered clone Caliber 324 SC, this piece dispenses with decorative movement plates in favor of a 1:1 architectural replication. The movement features the distinctive Gyromax-style balance and accurate perlage finishing across the bridges. Power reserve is rated at approximately 36 hours.
The stainless steel case measures precisely 35.2mm in diameter and weighs a verified 105.9g. The dial exhibits a deep opaline blue tone with the signature undulating wave motif specific to the 7118, demonstrating correct lacquer thickness. The alternating brushed and polished finishing on the bezel and integrated bracelet links closely follows genuine factory specifications.
- Movement: Clone Caliber 324 SC — Approximately 36 hours
- Case Material: Stainless Steel, 35.2 mm, 40mm lug-to-lug, 105.9g
- Bezel: Stainless Steel, vertical satin-brushed with polished chamfers
- Crystal: Sapphire crystal with colorless anti-reflective coating
- Bracelet: Integrated stainless steel, Nautilus fold-over clasp
- Water Resistance: 30m stated rating — professional pressure test recommended before swimming
The 7118/1A offers a refined, slightly more compact alternative to the traditional 5711, ideally suited for wrists under 6.5 inches. Its mechanical fidelity and strictly verified 8.4mm profile make it a compelling choice for purists evaluating case geometry above all else.

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