the sm300 was and still is a superb watch whichever model you go for as they have their own desirable differences. i did find the ploprof to beca bit heavy for leisure wear.
great history lesson for those that arent aware of the evolution. love the ads as well, i have mine carefully packaged in plastic sleeves.
after 20 plus years of collecting Omegas, the only thing i've never discovered is why they called s 200m wr watch a 300?
best
G