Sapphire crystal is one of the most common forms of crystal glass found on a watch face. Made from a single cut of sapphire material, these crystals are known for their superior clarity, scratch-resistance, and extreme durability. As a result of these properties, sapphire crystal has become the preferred choice among luxury watchmakers when it comes to protecting the dial of their watch.
Timepieces today generally come with one of three types of dial protectors: plexiglass (a light weight, clear acrylic); mineral glass (tempered glass); and sapphire crystal.
Low to mid-range watches usually have either a plexiglass or mineral glass dial due to their cheaper production costs, and they prove to be sufficiently resistant to impact. However, they are also more prone to scratches.
On the other hand, synthetic sapphire crystal is a much more expensive material to work with, as it needs to be sliced, ground and polished. This is why it is found in more luxurious watches, due to its excellent hardness rating, only diamonds rank higher on the Mohs scale.
So what actually is Sapphire crystal? Contrary to popular belief, it is not a naturally occurring gemstone. It is a synthetic material made from crystalline alumina. By crystallising pure aluminium oxide at very high temperatures and compressing it, a crystalline structure glass-like structure is formed.
This process acts to strengthen the material and give it high scratch-resistance and clarity properties, making it perfect for use in the production of watch crystals.
The material is also very strong and resilient, being able to withstanding considerable pressure before breaking or scratching.
The sapphire crystal has a few benefits over basic acrylic and mineral glass used in most watches. On top of its superior scratch-resistance and durability, the sapphire glass is designed to produce incredible clarity.
This means that the dial beneath can be seen with exceptional sharpness. Furthermore, the sapphire crystal provides excellent protection for the movements beneath as well as being unaffected by chemicals and acids. On top of these benefits, sapphire crystal is a relatively low-maintenance piece of glass. It does not require regular polished or oiling as with other glass, and should last for many years without needing any intervention.
Although sapphire glass has the highest scratch resistance among all watch crystals, the only material hard enough to cut it is diamond. Therefore manufacturing the glass is not a cheap process. Producing it and replacing it is expensive.
Sapphire crystal is also highly reflective, but watchmakers work around this this by layering the glass with an anti-reflective coating to help maintain the crystal clear view of the dial.
The Hublot Spirit of Big Bang is a great choice for those looking for a classic and luxurious timepiece. The watch demonstrates attention to detail and craftsmanship, making it a must-have for both fashionistas and watch enthusiast alike.
The case is made from 18ct rose gold and houses an intricate sapphire crystal. This crystal, combined with a semi-skeleton dial, gives the wearer a stunning view of the movement. The Spirit of Big Bang Rose Gold watch is a great example of a timepiece that is both stylish and functional.
The watch’s design and material make it a great choice for anyone who wants to add an extra element of style to their look.
The Breguet Marine is an exquisite and sophisticated timepiece crafted by the Swiss watchmaker.
It features a 36mm 18ct yellow gold case, a two-tone brushed dial with applied roman numerals. Housed beneath its scratch-resistant sapphire crystal glass is a self-winding movement with a 48 hour power reserve.
The Marine is completed by a 18ct yellow gold bracelet. This luxurious and stylish timepiece serves as the perfect accessory for anyone looking to add a touch of class to their wardrobe.
This exquisite Patek Philippe Nautilus incorporates a 40mm steel case, a plain black dial, and sapphire crystal glass. The black hand-stitched crocodile skin bracelet with a folding clasp is perfectly complemented by the steel bezel.
With 120M water resistance, self-winding mechanical movement, this watch is perfect for any occasion.
In conclusion, sapphire crystal is a highly scratch–resistant and durable form of synthetic crystal glass, perfect for being used in the production of luxury watch faces. As a result, it is the preferred choice for high-end watchmakers when it comes to protecting the dial from everyday wear and tear.
This, in turn, allows sapphire crystals to provide an incredible view of their respective dials, no matter what angle you look at them from.
Feel free to peruse our carefully curated selection of watches below.
At BQ Watches, we specialize in luxury pre-owned watches, including a curated collection of GMT watches. Whether you’re seeking a classic Rolex GMT-Master or a sophisticated Patek Philippe World Time, our team of experts is here to guide you in selecting the perfect GMT watch to suit your style and needs. With our commitment to authenticity, quality, and customer satisfaction, you can shop with confidence at BQ Watches.
In conclusion, a GMT watch is a valuable tool for those who require easy tracking of multiple time zones. Its functionality, combined with the craftsmanship and elegance offered by luxury watch brands, makes it a sought-after timepiece for collectors and frequent travelers alike. Explore our collection and let BQ Watches assist you in finding your ideal luxury pre-owned GMT watch.
