First Look: Seiko SRP637 Shrouded Black Monster

For watch enthusiasts with a sweet tooth for Seiko, big lume, and large timepieces, these are good times. Seiko is coming out with a line of affordable, large divers with Tuna shrouds.

 Case in the point is the $300 Seiko SRP637 Shrouded Black Monster equipped with the Seiko 4R36 hackable automatic movement. 

Spanning 47.5mm across the bezel and wearing high on the wrist owning to the Tuna shroud, the SRP637 has a polished, high-end look and the kind of lume you expect from Seiko. 

The SRP637 is also consolation for me as I felt I had to sell my very compelling Seiko SUN019 as I find I don't like to keep kinetic watches charged, or worry about their charge. 

As you can see, the SRP637 is close in size to the Seiko Tuna SBBN017 and a bit bigger than its older brother, the Seiko SRP307.

While the stock H-links are okay, I felt I'd be better off putting on the Strapcode Endmill 22mm bracelet that I had lying around. The Endmill makes the SRP637 feel more expensive on my wrist. 

With Seiko churning out 48mm divers with 4R36 movements and professional grade lume at a very affordable price point, these are good times indeed. 

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Comments

[herculodge]

I've heard both Tuna Monster and Baby Monster. It's a tad thicker than the SRP307. If you're worried about size, get the 307. But honestly, both are very wearable and neither are too big or too thick. I had both but sold them as I own two Seiko Tunas.

[Dan]

Yep, I already have the 307 on a Super Engineer. Just debating if I want to make a lateral move to the 637 as it seems a bit more toned-down and versatile. Not really a fan of circular hour markers on the Tuna, frankly.

[herculodge]

If you don't like giant lume circles, stick to the SRP637. I love those giant lume circles.

[Joey]

is the strap Strapcode Endmill 22mm a perfect fit on the SRP637 ? i men the pins and end link ? i meant no modifications?

[herculodge]

Yes, it's a perfect fit.