So to clear up a few things here...It is indeed a Balaton Titanium version with crystallized mokume gane sleeves. Although only the exotics were numbered and engraved, this one is a proto for the engraving depth and size, so it is a bit more special. This one is pushing a bit more than 350 lumens, it spikes at around 550 when turned on, thanks to the FET driver, and steps down to about 400-450 after the initial peak. There is a reason I don't make 18350's so this designed is aimed to the group of people, that prefers this size, having more intricate external features than sone of its bigger siblings. Lastly, the pricing on it. I make my lights in a single batch, once it is sd I move onto a new design. This Titanium Balaton didn't cost $1250 like the exotic versions, it had a base price of $385, with tritium options ($90) and exotic sleeve options ($150) so what you see here is $625 worth of very low production Titanium Balaton flashlight.