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This generic flat sapphire crystal is designed for the Franck Muller Heart 5000 K, measuring 40.0mm × 30.0mm with an overall height of 6.6mm and edge thickness of 1.0mm. Its flat rectangular design with stepped edge offers excellent optical clarity and scratch resistance for reliable watch glass replacement.
Flat rectangular shape minimizes optical distortion for clear dial viewing
Stepped design (6.6mm height, 1.0mm edge) for precise case fitting
1.0mm edge thickness provides balanced strength and durability
High hardness (9 Mohs) resists daily scratches and wear
Length: 40.0 mm
Width: 30.0 mm
Overall Height: 6.6 mm
Edge Thickness: 1.0 mm
Shape: Flat Rectangular with stepped edge
Material: Synthetic sapphire
Compatible Model: Franck Muller Heart 5000 K
Replacement crystal for Franck Muller Heart 5000 K
Suitable for luxury rectangular watch restoration
1.Is this an original Franck Muller part?
No, it is a generic compatible crystal, not OEM.
2.Will it fit my Heart 5000 K perfectly?
Only if your watch uses exactly 40.0×30.0mm stepped rectangular glass; measure before purchase.
3.What is the stepped edge for?
The stepped edge allows the crystal to sit flush against the case rim for a secure fit.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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