When making a mokume ring from patterned stock, it is often desirable
that the pattern flow around the ring without interruption. Forming
the stock into a ring and soldering the ends presents the problematic
issue of matching the pattern sufficiently to disguise the solder
seam. One solution to this problem can be had by forming the ring
without a seam in the first place!
This illustrated presentation from the website of Hansruedi Spillmann
demonstrates a clever trick to the fabrication of a seamless mokume
ring from a twist-patterend bar:
http://mokume.ch/praesentation_e.htm
I imagine the same technique could be used to form a band from
titanium bar stock without the necessity of welding the ends
together.