Some specs:
44mm stainless steel case
Powered by an automatic Seiko Cal.8L35
And a lot more awesome and equally boring stuff you can google.
Sold as a full set, boxes, papers, original metal bracelet and original green rubber strap, very minor wear signs, condition is very good
Unfiltered opinion:
Let me put it this way.
If there is a watch I would feel comfortable running over with my car the Marinemaster 300M would be it!
This is the best built and most durable dive watch ever. End of discussion.
Sadly this is probably your last chance for getting this monobloc cased watch from Seiko as they are no longer producing it.
Luckily I have owned a few in the past years and I always get the same feeling every time I wear one, this is the best dive watch ever made and don’t bother telling me otherwise.