Blue AR Coating Crystal Glass Seiko Bruce Lee 6139-6010 6139-6011 6139-6012 The bezel insert is in

The bezel insert is in black   for the dark blue navy dial

This is a Sapphire crystal ( Very hard to scratch or brake )

The bezel insert is in black for the dark blue navy dial

Extension link for Seiko H-link  stainless steel bracelet/band

and 6138-0017 6138-0019

Blue AR Coating Crystal Glass Seiko Bruce Lee 6139-6010 6139-6011 6139-6012 The bezel insert is inNew Blue AR Coated Mineral Glass for Seiko 6139 6010 6139 6011, 6139 6012, 6139 6013, 6139 6015, 6139 6017, 6139 6019. It is made from Mineral Glass, The Ar Coating is helping to protect your Dial and hands from the sunlight or any UV lights. The Blue Ar coating glass in some angles look the watch does not have a crystal on it, so you can see the dial and hand very clearly. The Ar coating is not visible at some angles. The diameter is 33 mm. The watch