In keeping with my "wearing old watches on vacation" mindset this month, I dug out my modified Seiko 7S26 diver. This watch is about 10 years old and differs from a production watch in its no-logo custom dial, clean hands, sapphire crystal, and bead-blast...
I have recently discovered the company and they have some interesting conversions - and at a price that is easy to experiment with and for a watch that noone will look askance at you for modifying.
Funny enough I just saw a bead blasted custom 6106 and like yours it the very cool blue hue from the AR material on the crystal. He had it on a thick green nato. Looked cool. I will try and get a shot Friday/ Enjoy you R&R. Bll