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This generic flat sapphire crystal is designed for the Patek Philippe Nautilus 5990, measuring 28.42mm × 28.42mm with a thickness of 1.2mm. Its flat square design offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
Flat square shape minimizes optical distortion for clear dial viewing
1.2mm thickness provides balanced strength and slim profile
High hardness (9 Mohs) resists daily scratches and wear
Generic design – always verify dimensions with original glass
Length: 28.42 mm
Width: 28.42 mm
Thickness: 1.2 mm
Shape: Flat Square
Material: Synthetic sapphire
Compatible Model: Patek Philippe Nautilus 5990
Replacement crystal for Patek Philippe Nautilus 5990
Suitable for luxury sports watch restoration
1.Is this an original Patek Philippe part?
No, it is a generic compatible crystal, not OEM.
2.Will it fit my Nautilus 5990 perfectly?
Only if your watch uses exactly 28.42×28.42×1.2mm square glass; measure before purchase.
3.Is this crystal suitable for both front and case back?
This listing is for front crystal; case back crystal may have different dimensions.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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