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This premium sapphire crystal is designed for the Patek Philippe Nautilus 5711 case back, measuring 26.5mm in diameter with a thickness of 0.8mm. Including a flat round gasket for secure sealing, this high-quality crystal ensures durability, scratch resistance, and clarity for your iconic timepiece.
Precision fit for Patek Philippe Nautilus 5711 case back
0.8mm ultra-thin profile for precise case back fitting
Flat round gasket included for secure sealing
High hardness (9 Mohs) resists daily scratches and wear
Diameter: 26.5 mm
Thickness: 0.8 mm
Included: Flat round gasket
Shape: Flat Round
Material: Synthetic sapphire
Compatible Model: Patek Philippe Nautilus 5711 (case back)
Replacement case back crystal for Patek Philippe Nautilus 5711
Ideal for restoring movement visibility in exhibition case backs
1.Is this an original Patek Philippe part?
No, it is a premium generic crystal with gasket, not OEM.
2.Will it fit my Nautilus 5711 case back perfectly?
Only if your case back uses exactly 26.5mm round glass; measure before purchase.
3.Does the included gasket guarantee waterproofing?
No, it aids sealing but professional pressure testing is recommended after installation.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.









