https://www.gnomonwatches.com/products/gmt-style-ceramic-bezel-insert-blue
Steinhart-Mods GMT Style Ceramic Bezel Insert Blue
Improved bezel inserts made by SteinhartMods.com. Improve the looks of your Ocean 1 with slimmer fonts. Up the legibility with the full luminous bezel. Now you...
steinhart modsgmtstyleceramicbezel