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The Generic JLC Jaeger-LeCoultre Reverso Sapphire Crystal (20.7 × 16.9 mm) is a high-precision replacement crystal designed for JLC Reverso-style rectangular watch cases. Made from durable synthetic sapphire, it provides clear visibility, strong scratch resistance, and a refined fit for professional watch repair and restoration.
Sapphire Crystal – Mohs 9, highly scratch‑resistant and optically clear.
Precision Rectangular Size – 20.7mm × 16.9mm, designed for Reverso‑style cases.
Generic Aftermarket – Non‑original but dimensionally accurate for direct replacement.
High Clarity – Excellent light transmission for easy dial reading.
Cost‑Effective – Affordable alternative for restoration or repair.
| Parameter | Details |
|---|---|
| Compatible Case | JLC Reverso‑style rectangular case |
| Type | Generic aftermarket |
| Material | Synthetic sapphire (Mohs 9) |
| Shape | Rectangular |
| Length × Width | 20.7 mm × 16.9 mm |
| Thickness | Not specified (typically ~1.0-1.5mm, confirm with product) |
JLC Reverso models that use a 20.7×16.9mm crystal (e.g., certain classic Duoface references)
Replacement for other brands‘ rectangular cases of the same size
Replacement of damaged, deeply scratched, or aged original crystals
Refurbishment or customization of Reverso‑style watches
1. Is this a genuine JLC crystal?
No. It is a generic aftermarket replacement, not original, but sized specifically for 20.7×16.9mm Reverso cases.
2. Does this crystal fit my Reverso model?
Measure your original crystal. If it is 20.7mm × 16.9mm, it will fit. Many Reverso models use different sizes – verify before ordering.
3. What should I pay attention to during installation?
The crystal fits into the swivel frame. Use a crystal press and UV adhesive. Align carefully to avoid hinge damage. Professional installation is recommended.
4. Will the swivel function be affected?
Proper installation will not affect the flipping mechanism. However, incorrect thickness may cause closure issues. Compare with the original.
5. Does this crystal have an anti‑reflective coating?
Not specified in the description. Confirm with the seller if AR coating is required.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
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