Another shot of the back showing the different surface finishes and the nice case finish. The lug size is 22 mm (Axis lug size is 21 mm) like the Seiko Monster's and not only the lug size reminded me of the Monster SKX779/781K. I guess this Illum II Diving Watch is even a bit heavier. The height of both the Axis and the Illum II watches is 14 mm.