Patek Philippe - Nautilus Automatic 40mm 5711/1A SS/SS Blue 3KF A324SC

3K Factory has just released its own replica of Patek Philippe’s Nautilus 5811/1G—following Patek’s October 2022 “sporty-elegant” update. They’ve matched the genuine model’s revised micro-adjustable clasp and fitted their in-house “330” integrated movement. But is the new 5811G replica worth choosing over the classic 5711?

Replica Showdown: 5711 vs. 5811

• Movement: 3K uses the same integrated caliber—branded “324” or “330” but mechanically identical—in both models. Expect that identical movement under either dial.

• Case & Size: The 5811G replica’s case is stretched by 1 mm (making it visually closer to the original’s 40 mm), and it gains the new two-part case design for easier servicing—just like the genuine 5811. The 5711 clone retains the older three-part case.

• Materials: Both are 316L steel clones; the genuine 5811G is solid white gold, so no replica can match its heft or metal density.

• Hacking Seconds: The real 5811 gains a hacking-seconds feature—something the old 5711 lacked. If your replica still uses the non-hacking 324 base, it misses this defining improvement.

• Clasp & Bracelet: 3K’s 5811 replica mirrors Patek’s new micro-adjustable folding clasp, while the 5711 clone uses the older, fixed clasp.

Verdict for Replicas: If you want the most faithful Nautilus clone, the newer 5811G wins on case design and clasp, but still can’t match gold weight or true hacking. The classic 5711 clone remains a strong choice—especially if it uses the same movement without adding the new hacking feature.

Genuine Nautilus: 5711 vs. 5811

• Production & Prices: The 5711 debuted in 2006 and was discontinued in 2022, triggering a major price spike on the secondary market. True pre-owned premiums only stick for ultra-coveted names like Rolex, Patek, and Audemars Piguet.

• Calibers: Early 5711s ran on Caliber 324; late-run models upgraded to Caliber 330 (adding hacking). The design remained over 95 % identical for over a decade—proof that classics need only subtle tweaks.

• 5811G Upgrades: Patek introduced a simplified two-part case for lower service costs, added hacking seconds, and focused exclusively on white gold. With AP reportedly outselling Patek in 2021, Patek is doubling down on high-margin precious-metal models to sustain exclusivity. Expect street prices easily double the official ¥400,000 CNY retail—perhaps north of ¥800,000 CNY.

Bottom Line

• As a Replica Buyer: Choose the 5711 clone if you’re comfortable with the classic design, or the 5811 clone if you want the updated case and clasp—just don’t expect genuine gold weight or a true hacking mechanism.

• As a Collector of Authentics: If you can afford it, the genuine 5811G offers two-part serviceability, hacking seconds, and long-term exclusivity in white gold—at the price of a premium far above discontinued 5711s.

In both worlds—replica and authentic—the “best” Nautilus depends on which features you value most: classic simplicity or the very latest refinements.