Product parameters glasssurface technologypolishing ,chamfermiddle height random.contace me if you have other specific needsThese round sapphire glass crystals come in a variety of thicknesses and diameters, are nearly unbreakable crystals making them highly prized by watchmakers. These watch crystals can be glued into most watch cases or pressure fit into most plastic watch crystal gaskets. Each sapphire watch crystal comes with a slightly polished bevel edge to give the watch crystal a nice finished look once it has been installed. These generic sapphire glass crystals can be used to replace the watch crystals of almost every name brand watch popular today, especially high-end watch crystals like those in Rolex watches, saving you both time and money. Except for sapphire glass, if you need another watch part, please contact me.Welcome to long-term cooperation. Please try to offer more details as below when you place an order: 1. Buyer offers an original sample or related mounting parts and special request for attention or change. 2. If you can not offer a sample, please try to offer more details as possible as you can
About Sapphire Glass
|BK7||Transmission Range: 330-2100nm
Refractive Index: 1.5164@588nm
|Most popular and low cost
Visible and near IR spectrum applications
|Fused Silica||Transmission Range: 185-2500nm
Refractive Index: 1.4858@308nm
Low Thermal Expansion Coefficient: 0.54 x 10-6K
|UV to IR spectrum
Best choice for thermal resistance
|Sapphire||Transmission Range: 180-4500nm
Refractive Index: 1.755@1000nm
|Best choice for scratch resistance applications Thinner optics Wide Transmission Range|
|Calcium Fluoride||Transmission Range: 170-7800nm
Refractive Index: 1.399@5000nm
Little Hygroscopic Susceptibility
High Thermal Expansion Coefficient: 18.85 x 10-6K
|IR laser applications|
|MgF2||Transmission Range: 120-7000nm
Refractive Index: 1.376@700nm
|UV laser applications|
1. window/ sight glass in high temperature situation 2. optial lens 3.led substrates
4. crucibles,trays,boats. 5. UV transmitting optical
6. protective glass cover for phone,camera,watch,scanner etc.
7. Sapphire blade
8. Sapphire bearing
9. Sapphire/Ruby ball for three-coordinate measuring machine
4. our sapphire produce step
About size we can provide
|Material||sapphire,Fused silica,optical glass, etc|
|Flatness||Lambda /4 Lambda /10|
|Bevel||0.25 mm at 45 degrees|
AR coating , Enhanced aluminum or custom
Q: How to pay?
A: T/T, Paypal, before the delivery.
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 1pcs. if 10pcs it's better.
(2) For customized products, the MOQ is 3 pcs up.
Q: What's the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 -4 weeks after you order contact.