High-quality flat round mineral glass watch crystals, available in a full range of sizes from 30mm up to 39.5mm in 0.5mm increments. This is a variation listing — please select the exact diameter you need before purchasing.
At 1mm thick, these are the industry-standard thickness for mineral glass replacement crystals, fitting the vast majority of wristwatches and open-face pocket watches that use a flat glass profile.
Flat 1mm mineral crystals are suitable for a very wide range of watches. Common applications include:
Open-face pocket watches (vintage and modern)
Dress wristwatches with flat crystal bezel seats
Replacement for worn, scratched or cracked mineral glass on Seiko, Citizen, Bulova, Omega, Pulsar, Lorus, Orient and many more
Watch repair and restoration projects where a flat profile is required
Important: Always measure the internal diameter of your watch case or crystal seat carefully before ordering. These crystals can be pressure-fitted using a crystal gasket or adhesive-set depending on your case design. Select your required size from the variation menu.
Notes
This is an aftermarket replacement crystal — not OEM manufacturer stock
Suitable for both professional watchmakers and hobbyist repairers
Mineral glass is harder and more scratch-resistant than acrylic/plastic crystals
Not sapphire glass — mineral glass is the correct replacement for watches originally fitted with mineral crystals
Dispatched from the UK. Please see our store policies for postage rates and returns.