Dumb question about the 3510.50 / Marui Dial

Hi guys, just got my first ceramic/titanium semaster 300m! New here.

Now I'm getitng into Speedmasters, and love the panda/marui speedmasters.

Dumb question, is the 3510.50 the same as 3510.50.00? I'm interested in swapping in a marui dial that's for a 3510.21, and want to make sure that I am purchasing the correct watch to match it. Any help would be great!