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Generic domed round sapphire crystal for JLC Master Ultra Thin Moon Q1362520, also fits Q1368420. Diameter 33.9mm, total thickness 1.9mm, step thickness 1.0mm, blue reflective coating, includes matching gasket. Aftermarket replacement for damaged original crystals.
Domed round with blue AR coating – reduces glare.
Includes gasket – ensures proper sealing.
Synthetic sapphire – scratch resistant (Mohs 9).
Drop‑in replacement – no case modification.
| Parameter | Value |
|---|---|
| Compatible models | Q1362520, Q1368420 |
| Diameter | 33.9 mm |
| Total thickness | 1.9 mm |
| Step thickness | 1.0 mm |
| Coating | Blue reflective |
| Gasket | Included |
| Material | Synthetic sapphire |
| Hardness | Mohs 9 |
| Type | Aftermarket |
Replace scratched/cracked original crystal.
Professional watch repair and restoration.
Q1: Genuine JLC part? No, generic aftermarket.
Q2: Gasket included? Yes.
Q3: Coating blue? Yes.
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.









