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This is a generic replacement sapphire crystal for the Girard Perregaux Vintage 1945 model 25890, measuring 18.6mm (length) × 15.6mm (width), with a domed profile. Made of synthetic sapphire glass, it offers exceptional scratch resistance and excellent optical clarity, serving as a direct substitute for a damaged or scratched original crystal. As an aftermarket part, it provides a cost-effective repair solution for watchmakers and enthusiasts.
Sapphire Crystal – Mohs 9, highly scratch-resistant and optically clear.
Domed Profile – Curved surface, matching the vintage elegance of the 1945 case.
Precision Rectangular Size – 18.6mm × 15.6mm, designed for the tonneau case.
Generic Aftermarket – Non-original but manufactured to OEM specs for direct replacement.
Cost-Effective – Affordable alternative for repair or restoration.
| Parameter | Details |
|---|---|
| Compatible Model | Girard Perregaux Vintage 1945 25890 |
| Type | Generic aftermarket |
| Material | Synthetic sapphire |
| Shape | Rectangular, domed |
| Length × Width | 18.6 mm × 15.6 mm |
| Thickness | Not specified (typically ~1.5-2.0mm, confirm with product) |
Girard Perregaux Vintage 1945 25890 (tonneau case)
Other Vintage 1945 variants using the same 18.6×15.6mm crystal (verify original size)
Replacement of damaged, deeply scratched, or aged original crystals
1. Is this a genuine Girard Perregaux crystal?
No. It is a generic aftermarket replacement, not original, but matches the 25890 dimensions.
2. Does this crystal fit other Vintage 1945 models like 25880?
Different references may have different crystal sizes. Measure your original crystal length and width – it should be 18.6×15.6mm.
3. What should I pay attention to during installation?
Use a new sealing gasket, apply UV adhesive or crystal glue, and press evenly with a crystal press. Ensure the dome faces outward. Professional installation is recommended.
4. Will the original water resistance be maintained?
Vintage 1945 models are typically 30m water resistant. Proper installation with a new gasket can restore everyday splash resistance. A water resistance test is advised.
5. Is a gasket included?
Usually not. The sealing gasket must be purchased separately. Confirm with the seller.
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