Lovely right hand to finish it, Watanabe has never been stopped before too, Saka has some heavy hands on him.
Subscription service Boxingraise.com have it. Bouts shown on there TYPICALLY don't get uploaded, as most people respect the fact that Boxingraise is run by the promoter putting on the shows and would rather they get some subscribers l, and can find their shows a lil more. The channel that uploaded the bout at the top is your best bet for a free copy or the Asian Boxing newsletter which might have it included in Feb
I definitely respect BoxingRaise and don't mean to undermine them by posting vids like the OP - and in general want to see them do well and gain subscribers ...but at the same time I've always been a firm believer in this sport being for and by the little folk, and not exclusive domain of the privileged, and therefore am pro- everybody getting to see all fights by whatever means possible. If paywalls are going to exist IMO they should be only barriers to getting higher quality feeds (which is fair, people shouldn't expect 4K for free), rather than being able to catch a glimpse period.