No they are the same size (case wise) except for the pushers and crown pieces of course. The 4000M is around 22mm thick while the 1000M is around 19mm. How do I know? Here's the kicker-
I'm the owner of these two genuine watches. That's my pictures that stonesix posted. They're great watches by the way!!!!
I'm the owner of these two genuine watches. That's my pictures that stonesix posted. They're great watches by the way!!!!