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Generic sapphire crystal for JLC Master Geographic Q1428470 (also fits Q143347A). 31.5mm diameter, domed round shape with 1.8mm total thickness and 1.0mm step thickness. Includes a sealing gasket. Made of synthetic sapphire for scratch resistance and clarity. Aftermarket replacement for damaged original crystals.
Fits JLC Master Geographic Q1428470 and Q143347A
Synthetic sapphire, Mohs hardness 9, scratch resistant
Domed round shape, 31.5mm diameter
Dimensions: 1.8mm total / 1.0mm step thickness
Includes sealing gasket for proper fit
| Parameter | Value |
|---|---|
| Compatible models | Q1428470, Q143347A |
| Diameter | 31.5 mm |
| Total thickness | 1.8 mm |
| Step thickness | 1.0 mm |
| Shape | Domed round |
| Material | Synthetic sapphire |
| Gasket | Included |
| Type | Aftermarket |
Replacing scratched, cracked, or aged original crystals on JLC Master Geographic Q1428470 / Q143347A.
Professional watch repair and restoration.
Q1: Genuine JLC part?
No, generic aftermarket, not OEM.
Q2: Which models fit?
Jaeger-LeCoultre Master Geographic Q1428470 and Q143347A.
Q3: Quality reliable?
Yes, synthetic sapphire, scratch resistant, good clarity.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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