I got the Sumo back about 5 years ago back in the "golden" age of Seiko when prices hadn't inflated. I think I paid like $400 for my Sumo new from Amazon. Great watch. So comfortable. I don't think I'll ever sell it.
I have both of these, only my Sumo is Green. I personally do like both, I’m a big fan of these designs. The MM300 was a grail of mine, I pulled the trigger late last year. I’m very happy with the purchase. It’s up to the individual if it worth the price.
Sumo everyday for me, not so chunky as the MM300 I have tried it on at the AD, ITS as thick as the Deep sea, I have the Jade Sumo, WANT to get the Classic black Dial, Sits Low, love the Dail, Very Legible, Had it serviced thru Seiko Australia, its a Tank 😃
It’s definitely thick but not on the level of the DeepSea , I have both and the DeepSea is almost 3 millimeters thicker and an absolute unit , it’s also at least for me is an absolute doorframe magnet , it’s hard to describe but the MM300 wears smaller than it’s specs but definitely still a larger watch than most
