…maar MM300 komt terug als SBDX017.
Volgens iemand in een topic op thewatchsite:
8L35 movement being updated to have MEMS technology used in the manufacture of its escapement. Grand Seiko borrowed this from Sieko’s semi conductor manufacturing processes and now it is being pushed to non GS movements. Same basic parts in movement just cut much cleaner.
A Propex X on the crown
Some form(s) of hardening on the case process Diashield being one.
Still has Hardlex
Same case dimensions
Ook de Tuna’s worden vervangen. De SBBN017 bv door de SBBN033.

Zie ook bv http://www.thewatchsite.com/21-japanese-watch-discussion-forum/171386-new-mm-mix-bringing-mm300-sbdx001-back-into-my-life-ironically.html#post1369818 en andere soortgelijke topics op andere fora.