Sapphire Watch Cover Watch Case Watch glasses Sapphire Dome glass
Description
Sapphire is scaled at Mohs hardness 9, the hardest next to diamond
.
It has the excellent endurance and eternal btilliance and
transparency .
This is why it has become intimate as the window materials of
wristwatches with so many custoners all over the world .
Specification
| Material | Aluminum Oxide (Al2O3) |
| Length(mm) | 2.0~200.0 Tolerance 0.03~0.1 |
| Width(mm) | 2.0~200.0 Tolerance 0.03~0.1 |
| Thickness | 0.1~25.0 Tolerance ±0.03 |
| Surface Roughness | ≤0.5nm |
| Infrared ray Transmission | > 85%(@633nm) |
Product shape can be divided into: round, rectangular, step shape
and a variety of Machinable shape.
Product size range: diameter (maximum diagonal) 10-500MM, thickness
0.3-100mm.
We can also provide different colors of watch cases and watch dome
glasses. Welcome to contact us for any inquiry.
The product shall be manufactured from high quality optical grade
Czochralski grown color sapphire crystals.
They are widely applied in luxury watches and the dimensions could
be customized.
Many manufacturers use sapphire to make watch cover and watch cases
for luxory watches like Rolex. Sapphire watch cover and watch cases
can also be understood as sapphire case. This synthetic sapphire
makes it into case series, which has distinct characteristics and
many advantages. It has high hardness, which can rival iron, copper
and other tough substances, second only to diamond, It can resist
the extrusion of foreign objects and prevent crushing, so as to
damage the internal structural parts and cause unnecessary losses;
Secondly, it has strong corrosion resistance and compression
resistance, or more functions, such as waterproof and shockproof.
It is because sapphire finished products have these various
characteristics, which makes it one of the essential components of
watch case or mobile phone window. Since it is sapphire case
series, let's take a look at sapphire, Sapphire has been heard of
in life, large and small. It is both naturally formed and
artificially synthesized. Whether it is natural or artificially
made, it has strong hardness characteristics, and its main
component is aluminum oxide. What we call sapphire is blue, while
the watch cover and watch cases are transparent. Why? This is
because it is a transparent and colorless sapphire formed by firing
pure alumina at high temperature. The high strength, high hardness
and scratch resistance of this sapphire have been improved.
Therefore, it is one of the indispensable components of sapphire
watch mirror series. Because the cost of processing this kind of
watch mirror will be higher, under high temperature firing, The
consumption of ingredients and materials is very serious, so the
watch composed of sapphire mirror we buy in life will be relatively
expensive. The composition is the preferred material for high-end
watch mirror.
