I think the OS300 fairs very well against the MM300. The thing with the Seiko is the supposedly more "refined" 8L35 movement and the unsual case monocoque construction. It is a classic watch. The current version has been in production for over 10 years, so talk about tried and true.
I am not a diver watch type of guy, but would not mind having a blue Sumo and the OS300, although, both of which would be wasted on me as I don't partake in water activities.
Let's see what watch I end up next year with when I turn 40.
Citizen Chronomaster in Stainless Steel or Titanium with Duratect coating:
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
The Watch Site
966.9K posts
50.3K members
Since 2010
A forum community dedicated to Watch owners and enthusiasts. Come join the discussion about brands, troubleshooting, repairs, reviews, accessories, classifieds, and more!