besides getting asian reps first will make you finetune your steel finish feelling at contact, and would/ will train you in the movement feeling while winding and setting time.
My first rep was also a quartz seamaster SMP, blue with tiatanium look (pure Ni plated brass), seconds at 6, weighting a ton but ran like a charm, back in 2001. It was followed by a swiss SMP black bond, which came from River the next year... it still runs, but the tube and crown are worn so no screwing now... which was one of the flaws of the model. Good memories. I think I'll use the movement or will fix it in some more time. Who knows.
good choices, wear them in grat health.
cheers!
Chino.