As you can see, the watch comes in two variations, the Type 1D-2 and Type
link 1D-3, differentiated by the latter having a hand-engraved
link case flank and edge between the lugs. The same
link engraver that does the dials, Keisuke Kano-san, also is responsible for these cases, which he tells me takes approximately 3-4 weeks per case. That's why he'll only make approximately 3 pieces over the next two years.