Watch Glass Crystal 3mm Replacement Flat Mineral Thick 17-50mm Select Size

Flat mineral glass watch crystal in 3mm thickness, offered across 211 individual sizes from Ø17mm to Ø50mm — simply select the diameter to match your old glass.

⭐ At a glance

📏 Size range: Ø17mm to Ø50mm (211 sizes, select yours from the options menu)

Thickness: 3mm flat profile

Material: Mineral glass

📦 Included: 1 × crystal in your chosen size

✔️ Condition: New

✅ Fits

This is a universal flat mineral glass replacement, not tied to any specific watch brand. Sizes run in fine 0.1mm steps from Ø17mm up to Ø35mm, then in 0.5mm steps from Ø35.5mm up to Ø50mm, so you can match almost any flat-fit case opening precisely. Once you've measured your old crystal, choose the matching diameter from the listing options and it will fit any watch case built for that size.

⚠️ Please check — measure your old glass straight across its widest point before ordering, as that diameter (not the case size) is what you need to select. Mineral glass is flat and designed for cases taking a flat-fit crystal rather than a domed or stepped one.