Mineral Watch Crystals: Flat and Domed

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Thickness 0,8 mm Ø 10 to 40 mm

Flat mineral crystal 0.8 mm

Thin flat mineral watch crystal, 0.8 mm thick. Available in 301 diameters from 10.0 mm to 40.0 mm, priced at €5.90.

€5.90

Only 2 left in stock

Thickness 4,0 mm Ø 25 to 50 mm

Flat mineral crystal 4.0 mm

Flat 4.0 mm mineral crystal, the thickest in the range. 51 diameters from 25.0 mm to 50.0 mm, from €5.90 to €13.90…

€5.90

Thickness 3,0 mm Ø 17 to 50 mm

Flat mineral crystal 3.0 mm

Flat mineral crystal, 3.0 mm, for cases that take a thick crystal. 211 diameters available from 17.0 mm to 50.0 mm, at…

€5.90

Thickness 2,0 mm Ø 17 to 50 mm

Flat mineral crystal 2.0 mm

Flat mineral crystal, 2.0 mm thick. Available in 291 diameters from 17.0 mm to 50.0 mm, at €5.90 each.

€5.90

Thickness 2,5 mm Ø 17 to 50 mm

Flat mineral crystal 2.5 mm

Flat mineral crystal, 2.5 mm thick, for watches with a sturdy case. Range of 251 diameters from 17.0 mm to 50.0 mm, at…

€5.90

Thickness 3,5 mm Ø 25 to 50 mm

Flat mineral crystal 3.5 mm

Thick flat mineral crystal, 3.5 mm. Available in 51 diameters from 25.0 mm to 50.0 mm, priced from €5.90 to €13.90…

€5.90

Thickness 1,3 mm Ø 17 to 40 mm

Flat mineral crystal 1.3 mm

Flat mineral crystal, 1.3 mm thick. Available in 191 diameters from 17.0 mm to 40.0 mm, at a single price of €5.90.

€5.90

Thickness 1,0 mm Ø 10 to 50 mm

Flat mineral crystal 1.0 mm

Flat mineral watch crystal, 1.0 mm thick. The widest reference in the range, with 369 diameters from 10.0 mm to 50.0…

€5.90

Thickness 1,5 mm Ø 17 to 50 mm

Flat mineral crystal 1.5 mm

Flat mineral crystal, 1.5 mm thick, with no surface treatment. Available in 176 diameters from 17.0 mm to 50.0 mm,…

€5.90

Mineral crystals and their shapes

Mineral crystal is fitted to a large share of everyday watches. Its hardness is around 5 to 6 on the Mohs scale, placing it between acrylic and sapphire. This category brings together 23 products, or 3276 diameters between 10 and 50 mm, from €5.90 to €13.90 inc. VAT.

Three shape families

Flat: 0.7 to 4.0 mm thick, with a chamfered version and a rimmed version.
Domed: 0.8 to 2.0 mm, including two anti-reflective references.
Domed with base: 1.0 to 3.0 mm, the dome sitting on a flat rim.

To choose, look at the profile of the original crystal from the side: a perfectly flat surface, a continuous curve, or a curve that starts after a shoulder. Thickness is measured on the edge of the removed crystal; too thick a crystal may touch the hands or protrude above the bezel, too thin a crystal reduces the hold.

Then take the diameter with a calliper following the guide to measuring a crystal. To confirm it really is mineral, refer to the page on crystal types.

Frequently asked questions

How hard is a mineral crystal?

Approximately 5 to 6 on the Mohs scale. It resists scratches better than acrylic but less well than sapphire.

Which thicknesses are available in mineral?

Depending on the shape, 0.7 to 4.0 mm for flat, 0.8 to 2.0 mm for domed and 1.0 to 3.0 mm for domed with base.

How can I tell a domed crystal with base from a plain domed one?

Seen in profile, the domed crystal with base has a flat rim around its edge before the curve begins, whereas the plain domed crystal curves right to the edge.

Can a mineral crystal be polished?

Polishing mineral is difficult and requires specific tooling; with a deep scratch, replacement is often the chosen solution.

Are there anti-reflective mineral crystals?

Yes, two domed products in 0.8 mm and 1.0 mm are available in an anti-reflective version, each in a single diameter.