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Generic domed round sapphire crystal for Omega Speedmaster ’57 331.12.00. Diameter 31.0mm, total thickness 1.8mm, step thickness 1.0mm. Blue anti‑reflective coating, includes grey gasket. Aftermarket replacement for damaged original crystals.
Domed round with blue AR coating – reduces glare.
Includes grey gasket – ensures proper sealing.
Synthetic sapphire – scratch resistant (Mohs 9).
Drop‑in replacement – no modification needed.
Affordable alternative to OEM.
| Parameter | Value |
|---|---|
| Compatible model | Omega 331.12.00 |
| Diameter | 31.0 mm |
| Total thickness | 1.8 mm |
| Step thickness | 1.0 mm |
| Shape | Domed round |
| Coating | Blue anti‑reflective |
| Gasket | Grey (included) |
| Material | Synthetic sapphire |
| Type | Aftermarket |
Replace scratched, cracked, or damaged original crystals on Omega Speedmaster ’57 331.12.00.
Professional watch repair and restoration.
Q1: Genuine Omega part? No, generic aftermarket.
Q2: Is the gasket included? Yes, grey gasket included.
Q3: Self‑install? Professional recommended for water resistance.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
