ARH Sapphire Co., Ltd
                                                                                                           
Verified Supplier
7 Years
Since 2019
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Synthetic Sapphire Watch Case with 1370 kg/mm² Hardness and 0.5-200mm Thickness Options for Luxury Timepieces

Price Negotiable
Price: 1000USD-10000USD
MOQ: 5pcs
Delivery Time: According to quantity
Product Description
Product Overview

Sapphire crystal watch cases are engineered from synthetic sapphire material, offering exceptional wear resistance, optical transparency, and thermal stability. Composed of pure aluminum oxide with a hexagonal crystal structure, these cases provide superior durability and chemical inertness for luxury timepieces.

Material Composition

Our synthetic sapphire is laboratory-grown using advanced crystal growth methods, replicating natural formation conditions. Chemically identical to mined sapphire, this material ranks as the hardest oxide crystal available, second only to diamond in hardness.

Product Images
Sapphire watch case front view showing crystal clarity and precision edges Sapphire watch case side profile displaying ground and beveled edge finish Close-up view of sapphire watch case surface quality and optical properties
Technical Specifications
PropertySpecifications
Thickness0.5-200mm
Size Tolerance±0.01
Edge FinishGround and beveled
Surface Quality40-20 scratch-dig
Surface Flatnessλ/4@633nm
Parallelism≤3 arc min (≤0.9mrad)
Clear Aperture>80% of central diameter
Hardness (Knoop)1370 kg/mm²
Young's modulus3.4×10¹¹ N/m²
Thermal Limit22 W/m/K
Thermal expansion coefficient8.4×10⁻⁶/K
Key Features
  • High mechanical strength withstands high-speed pressure loads
  • Excellent thermal stability maintains performance across temperature variations
  • Superior chemical resistance prevents corrosion and moisture damage
  • High optical transmission from ultraviolet to medium infrared radiation
  • Optimal optical characteristics with minimal scattering and uniform refractive index
  • Available in large window configurations
Manufacturing Advantages
  • Direct source manufacturer of color sapphire boule with specialized watch case expertise
  • In-house sapphire growth equipment using CZ and KY methods
  • Custom production capabilities based on client-provided drawings
  • Precision sapphire processing and polishing techniques
  • Experienced technical team with skilled craftsmanship
Frequently Asked Questions
Are you a trading company or factory?
We operate as both a professional sapphire products factory and a trading company.
Can you do customized products?
Yes, we specialize in custom production and OEM work. CAD or 3D drawings are required for custom orders.
Could you provide samples?
Samples are available with a charge. The sample fee is refunded when orders exceed 100 pieces.
What's the delivery time?
Standard delivery for 200 watch cases is approximately 5-8 weeks, depending on processing complexity.
How about the payment?
We prefer T/T payment methods for all transactions.
How about the delivery?
Most shipments are handled via air delivery services including DHL and FedEx.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ARH Sapphire Co., Ltd
Location Room 2-11,No.50 Yunhan Road,Chongqing China
Contact Person Florence Chen

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