[Z-Sub]

Originally Posted by JJ Irani

Great info, Vanessa.

The Sub caseback thickness of 1.51 mm is impressive. By the same token, can we assume that the caseback thickness of the YM (40 mm) would be the same as the Sub?

Thanks - JJ

isn't YM's WR rating 100m as well? I checked the thickness using naked eye between my Sub and my GMT, there is visible difference. Also, I compare it with a Daytona from a friend, Sub's caseback was also thicker than daytona visibly.