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Replacement Crystal for NTH 40mm Subs

Please note this item is not returnable.

Double-dome AR sapphire replacement crystal for the NTH 40mm Subs. This crystal measures 29.5mm in diameter, and ~2.5mm in thickness. It will fit both the v.1 (no crown guards) and the v.2 (with crown guards) 40mm NTH Diving Watch case.