【Replacement Sapphire Crystal for Patek Philippe Nautilus 5711/5712 – Domed Watch Glass with Inner Flange Printing】 – Precision-engineered replacement crystal (蓝宝石表镜/表蒙) designed for Patek Philippe Nautilus 5711 and 5712 series--18. Features the signature slightly domed / box-shaped profile that replicates the original Nautilus crystal curvature-18. Crafted from genuine sapphire crystal (莫氏硬度9) – the same material used in the original Patek Philippe specification-. Available in variants with inner flange “PATEK PHILIPPE GENEVE” printing – a critical detail for 5711 restoration--18. The essential replacement part for restoring your Nautilus to its original clarity and appearance.
Perfect Fit for Nautilus 5711 & 5712 – Specifically engineered for Patek Philippe Nautilus references including 5711/1A-010, 5711/1A-011, 5711/1A-014, 5711/1A-018, 5711R-001, 5712/1A-001, 5712R-001, 5712G-001, and 5712/1R-001-14-15. Compatible with both 40mm and 42mm case variants--. Also fits 5711/1P, 5711/1300A-001, 5712GR-001 and more-14-15. The precision-fit design ensures proper sealing and water resistance (30m–120m depending on model).
Premium Sapphire Crystal – 9H Scratchproof – Crafted from genuine synthetic sapphire – formed by crystallizing aluminum oxide at extreme temperatures-. Key advantages:
9H Mohs hardness – only diamond can scratch it-
Superior optical clarity – maintains pristine transparency for decades
Available with anti-reflective coating – reduces glare for better readability-18
Domed / box-shaped profile – replicates the original Nautilus crystal curvature-18
Inner Flange Printing – Critical for 5711 Restoration – The Nautilus 5711 features “PATEK PHILIPPE GENEVE” printed on the inner flange (内影圈) – this printing is part of the crystal assembly, not the dial-18. Our replacement crystal is available with precise inner flange printing that replicates the font spacing and alignment of the original. Note: aftermarket inner flange printing may differ from OEM in font spacing and angle, which can affect secondary market valuation-18.
Anti-Reflective Coating Option – Upgrade your crystal with multi-layer anti-reflective (AR) coating-. Original Patek Philippe crystals feature double-sided AR coating with pale purple/pale green interference colors-18. AR coating:
Reduces glare and reflections – improves dial readability in bright light
Increases light transmission – >99% light transmission-18
Available in clear or coated versions – choose based on your preference
Essential for Watch Restoration – Perfect for:
Replacing scratched or cracked crystals – restore crystal-clear visibility to your Nautilus
Restoring the original domed profile – maintain the iconic Nautilus aesthetic
Professional repairs – essential inventory for watchmakers servicing Patek Philippe
Professional Installation Required – Crystal replacement requires specialized tools and expertise – the Nautilus case has minimal clearance between the bezel and crystal, requiring precise pressure control during installation-18. Improper installation can compromise water resistance (30m–120m depending on model)-. Crystal only – movement, gasket, and crown not included. Note: Patek Philippe crystals require specialized fixtures for installation – non-authorized workshops using generic presses risk damaging the bezel finish or compromising the seal-18.
OEM-Spec Alternative – Precision-crafted to match original Patek Philippe specifications. A cost-effective solution compared to OEM service parts – original Nautilus 5711/5712 crystals typically range from $832 to $1,830 for NOS (New Old Stock) units-. Note: These are aftermarket replacement parts, not genuine Patek Philippe® parts. Aftermarket crystals cannot 1:1 replicate OEM inner flange printing, AR coating batch consistency, or curvature模具 – factors that may affect secondary market valuation-18.
