Flat Sapphire Crystal to replace OEM Hardlex on SKX007, 009 #007-Flat
It is OEM for modification. I have never used it. This is an after-market flat sapphire crystal that you can use to mod and upgrade your Seiko SKX007, 009 watch (both K and J models). It also fits the Seiko SKX173, SKX175, and SKXA35 watches.