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Generic flat round case back sapphire crystal for A. Lange & Söhne 1815 233.032. Diameter 30.4mm, thickness 0.8mm, blue reflective coating. Synthetic sapphire (Mohs 9), scratch resistant. Aftermarket replacement for damaged original case back crystals.
Flat round with blue AR coating – reduces glare, clear movement view.
Synthetic sapphire – excellent scratch resistance (Mohs 9).
Precise dimensions: 30.4 × 0.8 mm.
High optical clarity – showcases movement through case back.
Affordable alternative to OEM crystal.
| Parameter | Value |
|---|---|
| Compatible model | A. Lange & Söhne 1815 233.032 |
| Diameter | 30.4 mm |
| Thickness | 0.8 mm |
| Shape | Flat round |
| Coating | Blue reflective |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Application | Case back crystal |
| Type | Aftermarket |
Replace scratched, cracked, or damaged original case back crystals on A. Lange & Söhne 1815 233.032.
Professional watch repair and restoration.
Q1: Genuine A. Lange & Söhne part?
No, generic aftermarket.
Q2: Is this for the front crystal or case back?
Case back (exhibition back) crystal.
Q3: Self‑install?
Professional recommended for proper sealing.
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.
