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Generic flat round case back sapphire crystal for Omega Seamaster Aqua Terra 231.10.39. Diameter 27.5mm. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged original case back crystals.
Flat round shape – minimal distortion, clear movement view.
Synthetic sapphire – excellent scratch resistance (Mohs 9).
High optical clarity – showcases movement through case back.
Drop‑in replacement – no modification needed.
Affordable alternative to OEM crystal.
| Parameter | Value |
|---|---|
| Compatible model | Omega Seamaster Aqua Terra 231.10.39 |
| Diameter | 27.5 mm |
| Shape | Flat round |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched, cracked, or damaged original case back crystals on Omega Seamaster Aqua Terra 231.10.39.
Professional watch repair and restoration.
Q1: Genuine Omega part?
No, generic aftermarket.
Q2: Does it fit other Aqua Terra models?
Designed for 231.10.39. Check your original case back crystal diameter before ordering.
Q3: Quality reliable?
Yes, from reputable suppliers.
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.
