Replacement Crystal for NTH 40mm Subs

Please note this item is not returnable.

Double-domed sapphire replacement crystal for v.1 and v.2 NTH 40mm Subs, with two layers of interior anti-reflective coating. This crystal measures 29.5mm in diameter, and ~2.4mm in thickness. It will fit both the v.1 (no crown guards) and the v.2 (with crown guards) 40mm NTH Diving Watch case.