Upgrading your crystal from stock Hardlex glass to a premium Sapphire Crystal is a great first mod for your SKX007 or Seiko 5 Sports SRPD. This NMK305 SKX Double Domed Sapphire Crystal features a lower dome height that fits flat SKX007 inserts perfectly.
Our sapphire crystals have Anti-Reflective (AR) coating at the bottom side of the crystal. The AR coating comes in two colours - Blue and Clear AR.
