Guest Post: Seiko SNZF “Sea Urchin” Owner’s Impressions

Please welcome occasional commenter and new contributor “Mozzie”, whose username (and real name) suggest that he originally hails from an area now described with a -stan in its name. I’ve been sitting on a great piece of his about human vocal dynamics — no doubt figuring that I was too much of an ignoramus to edit that one, he has now sent me a simple watch review. Enjoy! — jb

The last time I owned a mechanical wristwatch was in the mid 1990s. As a young boy I didn’t know the limits of Soviet-era watchmaking capabilities and therefore lost the piece to moisture. Since then any watch I wore has been quartz-based, be it a Casio, Timex, or an analog fashion watch. In March of this year, having suffered through (he didn’t originally write “suffered through”, that’s an edit — jb) hours of the Watch & Listen podcast, I ordered the Seiko SNZF to complement my to-date favorite everyday watch, a Timex Expedition chronograph.

There are several reasons I chose this particular timepiece. One of my college jobs was in retail luxury goods, so I had hands-on experience with Swiss brands using ETA and in-house movements. As a result, being able to see the movement was high on my priority list. There are few options in this price range with a display back. I also wanted something I could wash with soap and water regularly, unlike my Timex with the leather strap. The Seiko “Sea Urchin” was the only option in my price range with solid end links. Lastly, the 42mm case size was just right for my dainty wrist.


When the Seiko arrived I had a moment of worry that I had ordered incorrectly; the day of the week was in Arabic script. The quick reference guide provided by Jomashop assured me the Seiko was bilingual. Of all the mechanical chronographs, perpetual calendars, or single or multi-axial tourbillons I encountered, I can’t recall ever coming across a multi-lingual complication. (This is common with Seiko 5s — the day window usually has a couple different languages on it — jb) Once the day of the week preference was set, I realized I’d forgotten all about band sizing when I made the purchase. Using a combination of unapproved tools and materials available to me at the house, I managed to get the size just right.

Half a year or so later with nearly daily use, the Seiko is still a pleasure to wear. It’s hefty enough to feel present, but is in no way bulky. The time keeping (as expected) is about three minutes off per month, in this case running too fast rather than too slow. The movement is quiet enough to make me have to expend considerable effort to hear the tick of the mechanism. The links show more wear on one side than the other. I don’t dive or do much swimming, so I can’t say much about its water resistance. The deepest it has gone on my wrist has been in a hot tub.

Despite occasional mild kayaking and regular washing, moisture has not been an issue. I noticed one quirk with the bezel ring: When it’s dry the action feels very stiff. After washing it the ring is dependably easy to turn. Where I live in Colorado it seems plausible the lack of humidity is at play, although the more likely answer is my ignorance of the mechanism’s true nature. One of my favorite features of the Timex Expedition is the backlight of the analog dial. I was concerned the lume of the Seiko would not work as well in the middle of the night, either at home or while camping. Although the brightness consistently degrades with the progress of the night, unlike with the Indiglo, I have come to prefer the Seiko. Using the Indiglo at night in the past was never an issue, but the Seiko lume is just bright enough for legibility, while being in no way so bright as to be disruptive. This preference very well may be a matter of adaptation on my part.

The glass, although not sapphire, has yet to show a scratch (when not photographed with a macro lens) despite various collisions with door knobs, railings, or other harsh use scenarios endemic to the suburban lifestyle. The reviews I took in from various online resources suggested Seiko’s glass formulation was almost as good as sapphire. I can’t substantiate that claim, nor have I run a key across the glass, but I have found one superiority it may claim over sapphire; the lack of a purple hue makes the black dial look truly black in all lighting conditions. In my experience black-dialed watches appear to have a dark blue tinge to them when viewed through sapphire. The display back window, also mineral glass, provides a fun view of the moving pieces of the movement, which obviously lacks decoration and presents just one visible bearing.

On several occasions during his time as host of the Watch & Listen podcast, Matt Farah pointed out that finish of the underside of the hands on his Grand Seiko (GS) appeared to be the same as that of the topside, visible in the dial reflection. Although nowhere near the brand positioning of the GS, the Sea Urchin’s hands are painted on the underside in the same pattern as the topside.

In the process of writing this piece I had to question whether the underside of the hands are lumed as well. If you can forgive my photography, you may see that they are indeed lumed. At first I though the second hand was also, but I think it is just a reflection.

I am left with two theories which I expect to be completely erroneous. The Seiko hands are either made identically on both sides to ease assembly, or the technicians can’t let the pieces leave production in an unfinished state. If I were writing this piece like a game review, I would follow former GFW’s managing editor Sean Molloy’s this-but-this mock formula and add some negative critisisms about the Seiko to seem balanced. The truth is that I read and listened to other people’s opinions about this timepiece before buying it, and I got what I mostly expected. I am pleased with the timepiece, and have been pleasantly surpried by some of its features. Having gotten used to this mechanical piece of timekeeping I am unsurprisingly looking through the Crown & Caliber site for others. The question now is: when will I spring for another wristwatch that needs neither a battery nor sunlight?

Moz E:
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