Thickness 3.75mm Sapphire Crystal Watch Case Blue 9H High Hardness Abrasion Resistance

Basic Information
Place of Origin: CHINA
Brand Name: zmkj
Model Number: Blue sapphire watch case
Minimum Order Quantity: 1PCS
Price: by case
Packaging Details: standard plastic case
Delivery Time: 4-6weeks
Payment Terms: T/T, Western Union
Supply Ability: 500pcs per month
Material: Doped Sapphire Crystal Color: Blue
Size: Customzied Surface: Polished
Character: Wear-resisting
High Light:

sapphire crystal watch face


custom sapphire watch crystal

Blue/ Green/ Pink/ Red/ White Sapphire single crystal watch glass case/ Sapphire optical glass for watch lens

Sapphire Glass


Sapphire optical windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration. Sapphire, a single crystal form of Al2O3, is resistant to attack by strong acids due to its high dielectric constant. It has high compressive strength and a high melting point. It is also resistant to UV radiation darkening. Our sapphire optical windows are not coated, but a single layer coating of MgF2 on each surface of the window increases the single surface transmittance to 99% throughout the entire visible spectral region. Please note the SAW series sapphire windows are provided in random axis orientation by default and its birefringent nature could affect the polarization state of your application.


Diameter: 30-50mm or customized
Thickness: 3.75mm
N.W.: 8.5g
Vickers hardness: HV2000-2500
Mohs hardness: 9 mohs
High Crystal Purity: > 99.995%
Compressive strength: 21000kg /cm²
Crystal texture: Hexagonal lattice structure
Specific heat: (20~350ºC)0.181cal/g°C(25ºC)
Thermal conductivity:


Product Description

The Advantage of Sapphire Crystal Glass

- High hardness - 9H

- Scratch resistance

- Abrasion resistance

- High mechanical strength

- High temperature resistance

- Good thermal stability

- High optical production rate


Products Detail

Thickness 3.75mm Sapphire Crystal Watch Case Blue 9H High Hardness Abrasion Resistance 0Thickness 3.75mm Sapphire Crystal Watch Case Blue 9H High Hardness Abrasion Resistance 1

Process Step


Thickness 3.75mm Sapphire Crystal Watch Case Blue 9H High Hardness Abrasion Resistance 2


Company Information

As a prominent manufacturer and exporter who focus on watches and watchparts R&D, manufacturing and sales, we welcome OEM/ODM orders. Our main products including Watches, Watch Parts such as: case, face, glass, straps, bezel inserts, hands, etc., which are all manufactured by high grade raw material and designed in compliance with high quality standard.

We regard "High-quality, Reasonable prices and satisfactory after-sales" as our tenet, offer clients with not-only top notch products but also best after-sale services. All our products are acclaimed for its durability, stylish look and high performance in this domain. Warmly welcome potential buyers to contact us, and looking forward to establishing long term mutually beneficial relationship with you!.



Q1: How can I get the price and consult for product details?

A1: Send enquiry via  Email, Skype, Wechat or Call us directly.


Q2: How is your quality of products and quality guarantee policy?

A2: 100% full test before shipping and 100% compliance with the request of clients.


Q3: What is the payment method?

A3: T/T, Western Union, L/C, Paypal,Etc.


Q4: What is the delivery time?

A4: Normally 3-10 working days after payment received. But it depends on exactly situation.


Q5: What package do you use for the products?

A5: Safe and standard packing for export shipment (PE film cover, kraft paper/bubble bags parcel, and pack into carton or wooden box).


Q6: What is your main product? OEM/ODM ?

A6:Thermal interface material, Sapphire Glass products, Die cut service for industrial etc.

&OEM/ODM is available. For details, please kindly contact the sales persons.


Q7: What is your service?

A7: 24 hours online service is our promise.

Contact Details

Phone Number : +8615801942596

WhatsApp : +8615801942596