High-Strength Sapphire Watch Case with 1370 kg/mm² Hardness and 0.5-200mm Thickness Options
Synthetic sapphire watch cases are chemically identical to mined sapphires but grown in laboratory settings. These premium cases offer exceptional hardness, second only to diamond, making them ideal for high-performance timepieces.
| Property | Specifications |
|---|---|
| Thickness | 0.5-200mm |
| Size Tolerance | ±0.01 |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Surface Flatness | λ/4@633nm |
| Parallelism | ≤3 arc min (≤0.9mrad) |
| Clear Aperture | ＞80% of central diameter |
| Hardness (Knoop) | 1370 kg/mm² |
| Young's Modulus | 3.4×10¹¹ N/m² |
| Thermal Limit | 22 W/m/K |
| Thermal Expansion Coefficient | 8.4×10⁻⁶/K |
- High mechanical strength withstands high-speed movement and pressure loads
- Excellent thermal stability maintains performance across temperature variations
- Superior chemical stability resists atmospheric corrosion and moisture
- High optical transmission rate from ultraviolet to medium infrared radiation
- Optimal optical characteristics with minimal scattering and uniform refractive index
- Available in large window configurations
- Direct source manufacturer of color sapphire boule with specialized watch case expertise
- Proprietary sapphire growth equipment using CZ and KY methods
- Professional custom production based on client CAD and 3D drawings
- Precision sapphire processing and polishing capabilities
- Experienced technical team with skilled craftsmanship
We are a professional sapphire products factory with trading capabilities.
Yes, we specialize in custom production and OEM work. CAD and 3D drawings are required.
Yes, samples are available with charge. Sample fees are refunded for orders exceeding 100 pieces.
For watch cases, standard delivery is 5-8 weeks for 200 pieces, depending on processing complexity.
T/T payment is preferred.
Most shipments are via air courier services including DHL and FedEx.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.