Generic Patek Philippe Nautilus 5740 Case Back Sapphire Crystal With Gasket 27.9mm

Product Description

This generic flat round sapphire crystal is designed for the Patek Philippe Nautilus 5740 case back, measuring 27.9mm in diameter with a thickness of 1.0mm. Including a gasket, it offers excellent optical clarity and scratch resistance for reliable case back glass replacement.

Features & Function

• Flat round shape ensures precise fit for case back opening

• 1.0mm thickness provides balanced strength and slim profile

• Gasket included for easier installation and basic sealing

• High hardness (9 Mohs) resists daily scratches and wear

Specifications

• Diameter: 27.9 mm

• Thickness: 1.0 mm

• Included: Gasket

• Shape: Flat Round

• Material: Synthetic sapphire

• Compatible Model: Patek Philippe Nautilus 5740 (case back)

Applications

• Replacement case back crystal for Patek Philippe Nautilus 5740

• Ideal for restoring movement visibility in exhibition case backs

FAQs

1.Is this an original Patek Philippe part?
No, it is a generic compatible crystal with gasket, not OEM.

2.Will it fit my Nautilus 5740 case back perfectly?
Only if your case back uses exactly 27.9mm round glass; measure before purchase.

3.Does the included gasket guarantee waterproofing?
No, it aids sealing but professional pressure testing is recommended after installation.

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