I just posted a similar post, I have the same crab and letters in a diamond. If you find any info, please contact me, bunnspecial, I will do the same for you.
I have a pocketwatch, small one (12 size) that is silver. There is a very tiny mark of a crab (too small for my camera to photograph) on the case in 2 places. Other marks are the numbers 2 6, and the letters G+L inside of a sideways diamond. The outside of the watch case has some tricolored gold lea...