Seiko "Sumo" SBDC Watch Discussions | Drop

Dec 14, 2015

Hey guys, It appears Seiko did add another small improvement to the SBDC031 and 033 models. According to forum posts and the listing on ShoppingInJapan.net, both models also received the new LumiBrite formulation that, according to Seiko, glows for up to 60 percent longer.
Here's the link: http://www.shoppinginjapan.net/sbdc031

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sprk1

232

Dec 15, 2015

JakeRobertsFYI this new formulation tends to glow Godzilla green... Hell people are calling is nuclear lume.

Dec 16, 2015

sprk1Nice! I'm used to it from the SRP637 "Monster Tuna"! I'll be sure to compare once the 033 Blumo gets here!

Dec 16, 2015

sprk1Interesting.. my older Blumo's lume already glows brightly at all times of the night. It's hard to imagine that it could be improved by 60%.

sound1

Dec 17, 2015

TigoleIf this is the same lume as on recent kinetic tunas (mine was SUN023) it will be in a different league. I can tell you my Blumo's or 2nd Gen Monster's lume are no match. Initial brightness is about the same but it Tuna lasts waaay waaay longer and the glow is softer 'matte' glow if that makes any sense. OTOH I was surprised (& disappointed) to find my SBDC003 lume to be inferior to my SRP307.
Hey massdrop, can I exchange SBDC003 with SBDC033? :p

sprk1

232

Dec 17, 2015

JakeRobertsI am very curious to see comparison pictures!

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Dec 17, 2015

sprk1I've been looking, but haven't been able to find reviews and/or owner pictures of the new models.

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Dec 17, 2015

sound1I have both as well, but I've never noticed my Blumo's lume to be inferior to my SRP309. I would say they're comparable or the Blumo is slightly better.
But, good to know about the new lume. I've been eyeing the SRP637, and it's one more reason to get it.

Dec 18, 2015

TigoleThe SRP637 Monster Tuna uses the regular LumiBrite formulation, not the new one.

Dec 18, 2015

JakeRobertsThanks for clarifying. I misread your previous post about it then.

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Dec 18, 2015

JakeRobertsI found a comparison of the old vs new lume. Not the same watch, but close enough:
https://www.ar15.com/mobile/topic.html?b=1&f=178&t=1800105

ZeroAspect

Dec 18, 2015

TigoleThanks for the comparison. I chose the SBDC003 but now I'm second guessing myself because of this new lume.

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sprk1

232

Dec 18, 2015

ZeroAspectSome people do preffer the previous lume though. I'd reckon styling and the lack of prospex branding should be the deciding factor va the lume.

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ZeroAspect

Dec 18, 2015

sprk1Yeah, I like the idea of having the "classic" version above all else. "Prospex" means nothing to me and I prefer the look without the logo there.