Replacement Double Domed Sapphire Crystal Compatible with IWC Portuguese Regulateur IW5444 with Blue AR Coating

Restore clarity and elegance to your watch with this replacement double domed sapphire crystal, designed for watch cases compatible with the IWC Portuguese Regulateur IW5444. Featuring a refined dome profile and blue anti-reflective (AR) coating, this crystal enhances dial visibility while preserving the classic chronograph aesthetic.

Crafted from high-quality synthetic sapphire, it offers excellent scratch resistance, durability, and long-term optical clarity. The double domed design helps reduce edge distortion while maintaining the characteristic curved profile associated with Portuguese chronograph models.

The crystal is manufactured to match the original seating profile and edge dimensions, ensuring proper fitment and secure installation when fitted by a qualified watch technician.

(Compatible replacement part — not affiliated with IWC.)

Product Specifications

• Material: Sapphire

• Profile: Double domed

• Feature: Blue anti-reflective (AR) coating

• Compatibility: IWC Portuguese Regulateur

• Reference Fit: IW5444

• Dimensions: 38.3mm × 1.6mm

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