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Discover our Premium range of replacement watch crystals , specially designed for a T 4.0 mm thickness . Made in Japan from high-quality mineral crystal , these flat glasses offer increased strength , optimal durability and perfect transparency . They are ideal for sports watches, diving watches or those requiring enhanced protection .
Premium Watch Glass – 4.0 mm Mineral – Made in Japan
Premium 4.0 mm watch crystals are distinguished by their superior thickness, which gives them exceptional robustness. Designed to resist shocks and scratches, they preserve the readability and safety of your watches, even under intensive conditions.
Main features
- Thickness : 4.0 mm.
- Material : Premium mineral crystal.
- Finish : high transparency and optical sharpness.
- Manufacturing : Made in Japan , precision and reliability guaranteed.
Compatibility
- Designed for diving, sports and technical watches .
- Also suitable for modern or antique rugged watches requiring enhanced protection.
- Available in multiple diameters to fit a wide variety of enclosures.
Benefits of Premium 4.0mm Lenses
- Reinforced protection against shocks and scratches.
- Optimal durability for intensive use.
- Perfect readability thanks to high-quality transparency.
- Japanese watchmaking quality recognized worldwide.
Typical uses
- Replace a damaged glass on a diving or sports watch.
- Restore a sturdy watch requiring extra security.
- Improve the resistance of a watch under heavy use.
FAQ - Premium 4.0mm Watch Glass
Why choose a 4.0mm watch glass?
A 4.0 mm glass provides maximum protection, ideal for watches exposed to extreme conditions, such as sports or diving watches.
Are these premium glasses made in Japan?
Yes, all our Premium 4.0mm mineral lenses are Made in Japan , guaranteeing precision and superior quality.
What is the difference between 3.5mm and 4.0mm glass?
A 4.0 mm glass is slightly thicker and therefore more resistant. It is recommended for watches requiring maximum security .
How to choose the right diameter?
It is essential to accurately measure the inside diameter of your watch case . Our lenses cover many diameters to fit most models.
Can I replace a 4.0mm glass myself?
Yes, with a suitable glass press . For a high-end or high-value watch, it is recommended to entrust the operation to a professional watchmaker.
