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Generic flat sapphire crystal for Jaeger‑LeCoultre Reverso Q3958420. Dimensions 27.1 × 21.7 × 0.75 mm. Aftermarket replacement for damaged original crystals.
Flat profile – minimal distortion, classic Reverso style.
Synthetic sapphire – scratch resistant (Mohs 9).
High optical clarity – maintains dial readability.
Drop‑in replacement – no case modification.
| Parameter | Value |
|---|---|
| Compatible model | JLC Reverso Q3958420 |
| Dimensions | 27.1 × 21.7 mm |
| Thickness | 0.75 mm |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched/cracked original crystal on Reverso Q3958420.
Professional watch repair and restoration.
Q1: Genuine JLC part? No, generic aftermarket.
Q2: Does it include a gasket? No, use original or purchase separately.
Q3: Quality reliable? Yes, from reputable suppliers.
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.









