Round Flat Watch Glass

Perfect round flat design, both sides flat, high‑grade synthetic sapphire material
Mohs 9 hardness, outstanding scratch‑proof performance and high light transmittance
Standard diameter: 20‑40 mm; other custom sizes are acceptable
Custom thickness and edge finish based on your drawings or samples
Various functional coatings optional, competitive factory price, strict QC, sample & bulk orders accepted

product details

Our round flat watch glass is precision polished from high‑grade synthetic sapphire. Featuring smooth flat top and flat bottom surfaces, it achieves high light transmittance. With Mohs 9 hardness, it provides excellent scratch resistance and good shock resistance, effectively shielding watch movements from dust, moisture and external impact.

Standard diameter covers 20‑40 mm, other special sizes are available for custom‑made production. We support customization on thickness and edge finishing according to your drawings or samples. Multiple functional coatings including anti‑reflection, anti‑fingerprint and anti‑glare coatings are optional. As direct manufacturer, we offer competitive factory prices for sample trials and bulk orders. Each item undergoes strict dimensional and visual inspection to ensure stable batch quality. Global B2B inquiries are welcome.