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Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating
  • Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating
  • Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating
  • Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating
  • Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating
  • Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating

Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating

Place of Origin China
Brand Name ZMSH
Certification ROHS
Model Number sapphire watch case
Product Details
Product Name:
Sapphire Watch Case
Al2O3 99.999% Single Sapphire Crystal
9 Mohs
3.98 - 4.1 G/cm³
Melting Point:
Refractive Index:
Approximately 1.76-1.78
High Light: 

Transparent sapphire watch case


Classical circle sapphire watch case


AR coating sapphire watch case

Product Description

Al2O3 sapphire watch case transparent Classical circle AR-coating

Product description

  Watches with cases produced from synthetic sapphire are becoming increasingly popular, and for good reason. Sapphire has been used as a material for watch crystals since the 1980s, but only recently have modern machining techniques made it possible to cut and polish sapphire material into more complicated shapes like those needed for a watch case. Richard Mille started the sapphire case watch craze some years ago with a watch that cost over $1,000,000. Sapphire-cased watches were, for a time, an interesting high-end exotic novelty with a high price point to match. In 2022, sapphire case prices have come down even further, allowing for the highly scratch-resistant and transparent material to be used for an even wider array of timepieces. Sapphire crystal watch cases come in a variety of colors, including entirely transparent cases such as this one. For a long time, it has been known how to color sapphire, and accordingly, we have sapphire cases out there with various color accents including blue, orange, green, purple, and more. Clear sapphire is probably the most versatile of the colors, and allows for the purest view of a watch’s innards. This is perhaps the greatest appeal of a sapphire case — that you can easily view the insides while those insides are still entirely protected.

Product parameter

Property Value Description
Hardness 9 Mohs Second only to diamond, highly scratch-resistant.
Transparency High optical transparency Allows clear visibility of the dial.
Impact Resistance High Suitable for daily use due to its durability.
Thermal Stability Excellent Resists temperature fluctuations without damage.
Chemical Resistance Strong Resistant to most chemicals, not prone to corrosion.
Refractive Index Approximately 1.76-1.78 Enhances the visual appeal of the case.
Density About 3.98 - 4.1 g/cm³ Moderately dense, sturdy without being bulky.
Melting Point About 2040°C Indicates stability in extreme conditions.

Product details

Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating 0Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating 1,

  Sapphire is an extremely hard and scratch-resistant material, which is why it is favored in the area of watchmaking. Its weakness is in how difficult it is to machine (requiring special diamond cutting tools that wear out quickly and need to constantly be replaced), as well as in the fact that it can theoretically shatter if subjected to the right shock. Metal doesn’t do this, given that it bends and deforms before it would ever break apart. This more or less means that while a sapphire-cased watch will put up with wear and tear amazingly well, it isn’t a good idea to allow it to be dropped or smashed against a wall. It’s rare for a sapphire crystal case to break, but it can happen. The sapphire case for the Wave Crystal watch is on the larger side at 46mm-wide despite its more classic visual design. The case is made of only two pieces, with the front sapphire crystal lens being integrated into the case design (naturally). The case is thoroughly AR-coated in order to reduce glare, which helps a lot. The case is also about 15mm-thick and has a lug-to-lug distance of about 53mm. It is water-resistant to 30 meters, which is about standard for sapphire-cased watches.

Special customization service

  • Anti Reflective Coating

Lenses of glasses, sunglasses lenses of various colors, glass optical lenses taken separately, brochure pictures.

Anti-reflective coating applied to watch glass enhances the clarity of the watch face by allowing more lights to pass through the glass, reducing unnecessary reflections. Its benefits include improved visual clarity of the watch face, reduced glare, increased visibility of the watch face and hands, making the watch more functional and visually appealing.

Al2O3 Sapphire Watch Case Transparent Classical Circle AR-coating 2

  • Hard Anti-reflective Coating

Hard Anti-reflective coating, when applied to the surface of sapphire, improves the transparency of sapphire crystal, emphasizing its special durability and hardness. We conduct multiple reliability tests in-house, including steel wool durability tests, salt spray tests, artificial sweat tests, etc., to ensure the quality and durability of the coating.

  • Anti-UV Coating

The anti-UV coating is a special coating technology applied to watches. This coating has the ability to resist ultraviolet (UV) rays and effectively protect the watch face from the harmful effects of sunlight and other UV rays. It not only helps maintain the quality of the watch’s appearance but also extends the lifespan of the watch. Anti-UV coating makes the watch more durable while ensuring that its surface is less prone to damage or discoloration. This coating is typically applied to the crystal glass of the watch to ensure that the watch’s display remains clear and attractive even when exposed to sunlight for extended periods.

  • Various Colors Decorative Coating

Various lenses and glasses made of quartz glass for instrument optics.

When various colors coatings are applied to watch glass, they add color and aesthetics to the watch’s glass surface. These coatings are applied in different shades and colors, allowing customization to match the watch’s design and style preferences. Using coatings of various colors can enhance the visual appeal of the watch, making it a fashionable and personalized accessory.

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