i must say that i will always prefer the speedy, but i owned one of the earlier blue dialled SMP 300 chrono's and they are pretty bomb proof. this movement is better than the earlier 7750 variant so you've got a good daily beater that will happily take a bashing. i also had the black dialled smp 300 non chrono from the 1990's and really wish i'd kept it as they look so much better than the blue dialled models.
enjoy it and wear it in good health.
G