New Sapphire Glass Crystal Lens Seiko 6139-6040 6139-6041 It has a AR coating

It has a AR coating  for protecting the dial and hand form sun

This is a mineral crystal made from glass not plastic or acrylic

1  Second hand

we have Sapphire crystal with Blue or clear AR coating ( in different listings )

and O ring gaskets for Seiko Chronographs including

New Sapphire Glass Crystal Lens Seiko 6139-6040 6139-6041 It has a AR coatingReplacement crystal for Seiko case models listed below. This is a sapphire glass crystal. It is an exact fit for your Seiko 6139 6010, 6139 6011, 6139 6012, 6139 6013, 6139 6015, 6139 6017, 6139 6019, 6139 6030, 6139 6031, 6139 6032, 6139 6040, and 6139 6041. Please do not hesitate to ask any questions you have. Your watch model may not be listed please ask if you want to make sure it will fit or not. Please do not hesitate to contact us if you have