Hi, I did a search but couldn’t find a comparison between these two buttons. If i’m deciding between the two, any opinions? I’ll mainly be playing with curved layout for HD remix and sf4.
I see. So seimitsu is not as sensitive. What’s the sensitivity compared to happ?
This info is found in the Sanwa/Seimitsu threads. But just to help out here, there are a couple of issues.
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It may vary. Some Sanwa buttons feel completely different than other ones. For instance, the buttons on my VSHG feel completely different than the ones I had in my HRAP 2 SA. Same goes for Seimitsu. I have used different sets of clears for custom orders, and each one has felt different. The orange and blue clear ones were even more different.
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The sensitivity in both the Sanwa and Seimitsu are higher than Happs. I find that the Seimitsu buttons are a great middle ground. Love them.
Everyone is different though, so maybe just order a set of Sanwa and a set of Seimitsu and try em out.
Also note that the buttons change feel after you wear them in for a bit. I have noticedslight changes for the better in my seimitsu setup.
They become more smooth and not as two-stage-push-y feeling that seems to be common with seimitsu buttons.
Out of the many color Sanwas I own I think the white are by far the most sensitive.
After feeling the Seimitsu buttons on my friend’s stick, I absolutely fell in love. They’re sensitive, but not as extremely sensitive as Sanwa buttons, yet it doesn’t have big resistance like Happ Competitions do either. It’s a middle ground as Imitrex said.
Speaking of Seimitsu buttons, does Seimitsu make 24mm buttons that are capable of being used with LED lights? I know they make the PS-14-KNs, but do they make anything similar for 24mm size?
never tried simitsu but i like my sanwa buttons 
I actually find that the Sanwa buttons are far better than the Seimitsu ones. I rank them as: 1) Sanwa, 2) Happ, 3) Seimitsu. I personally hated the Seimitsu buttons, as I felt that I had to beat the hell out of them just to get them to work after a period of time…just my 2 cents though…
I just have experience with Sanwa and Happ buttons. I got some Seimitsus but I don’t have them installed on a stick yet. The Sanwas are really sensitive though. Sometimes I will lightly breeze over a button and it activates it.
Since I grew up with happ competition, it sounds like I would like seimitsu, as sort of a middle ground between sanwa and happ. Thanks for the feedback. I’ll keep reading and considering though if anyone wants to post more.
So over time it’ll feel more like a Sanwa lol.
Sanwas are brillliant when you get used to them and most responsive.
The fanciest Seimitsus look better. Almost don’t want to use them because you’ll scratch the lovely clear tops.
All preference though.
I can tell you the difference technically.
Lets say both buttons travel 4mm down into the surrounding plastic.
Sanwa buttons travel smoothly all the way down. Very low resistance all the way.
Seimitsu travels smooth for 2mm and has a bit of resistance for the remaining 2mm (while the switch is pressing).
Its subtle but its there. Seimitsu is halfway between happ and sanwa. maybe leaning more towards the sanwa.
Both are excellent buttons.
Yes I’ve seen those clear seimitsu. They do look sweet and that factors into the decision.
That was very helpful thanks. I think my fingers would be more comfortable with the slightly increased resistance of the seimitsu.
BTW, Seimitsu G-series buttons feel very different than most Japanese buttons. They offer more resistance and even have a significantly different sound. While the traditional Japanese buttons have “click” or “snap” sounds, the G-series buttons have a hollow, drum-like sound. So they can’t be categorized with every other Japanese button (in my opinion).
In the end, you have to try them out and see what suits you. I never liked Sanwa buttons since they were too responsive. I could barely nudge the button and it would register. So I took white Sanwa plungers and put them in Black (dark-hai) Sanwa encasings (AKA the part the plunger pops out of). So basically it’s a Sanwa button with a Seimitsu White/Black color scheme. This gives the illusion of less sensitivity and increased depth since you can see the button being lowered with respect to the black outline.
Also note that the different varieties of Seimitsu buttons feel different as well. Snapins, Screwins, and clear KN screwins, ALL use different switches, and people have claimed that the KN’s were the worst.
I’ve got a set of PS-14-K’s and a set of KN’s - the KN’s definately have more resistance and a clickier feel. My sanwa’s are super sensitive and I’m still getting used to them!
I like switching between my sticks though, some days one set up feels better than the others - I really don’t have a definate preference.
I personally like Sanwas more. I like the sensitivity because I have a light touch. Seimitsus are also top quality and would be my second choice.
When I made my first stick I was curious about the difference of the two brands. I bought 3 Sanwas and 3 Seimitsu. After a couple of days I deceided Sanwa was for me.