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Seiko 5 #SNK375 Men's Stainless Steel Black Dial Self Winding Automatic
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Seiko 5 #SNK375 Men's Stainless Steel Black Dial Self Winding Automatic



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SEIKO 5 - the meaning of the "5" A great marketer had the idea in the 70ies: to be a SEIKO 5, the watch has to have the following 5 (five) attributes (thus the name SEIKO 5): 1. Automatic, 2. Water resistant, 3. Shock resistant, 4. Date, 5. Day. Please note that some SEIKO 5's are in fact SEIKO 4's, if the "Day" function is omitted, then the Caliber 7S25 is used. The only difference to the normally found 7S26 is the omission of the day wheel. Also re-issues of SEIKO 5 Sports often use the 7S36 caliber. Again the 7S36 is similar to the most popular 7S26, yet it features 23 Jewels as opposed to the 21 Jewels in the 7S26. Please note that all these movements beat at a rate of 21'600 bph (beats per hour) or 6 bps (beats per second). As a comparison, an ETA 2824-2 beats at 28'800 bph or 8 bps. A Miyota 82xx beats at 21'600 bph. Why do I mention these three movements? Because they are found in probably 80% of all inexpensive automatic wrist watches. A market share that is huge, yet challenged these days (2006) by an increasing share of inexpensive China Made automatic movements. An automatic watch (also called a self-winding watch) is a mechanical watch, typically with a balance wheel escapement, whose mainspring is wound by the motion of the wearer's arm, instead of having to be wound manually every day. Whereas a quartz watch is powered by electricity, a mechanical watch is powered by a mainspring which must be rewound for the watch to keep time


Japan 21 Jewels Automatic Self-Winding Movement (7S26)

Stainless Steel Case and Band, Push Button Release Clasp

Day/Date Display with Spanish Option, Luminous Hands and Markers, Hardlex Crystal for Durability

Case Size: 38mm Diameter, 11mm Thickness

Water Resistant - 30M, Screwdown Transparent Caseback

Product Details:
Product Length: 3.94 inches
Product Width: 3.94 inches
Product Height: 3.94 inches
Product Weight: 0.24 pounds
Package Length: 4.8 inches
Package Width: 3.9 inches
Package Height: 3.8 inches
Package Weight: 0.7 pounds
Average Customer Rating: based on 22 reviews
Watch Information:
Crystal Material: hardlex
Clasp: fold-over-clasp-with-double-push-button-safety
Case Diameter: 36 mm
Case Thickness: 11 mm
Case Material: stainless-steel
Band Material: stainless-steel
Bezel Material: stainless-steel
Dial Color: black
Movement: japanese-automatic
Calendar: day-and-date
Water Resistance Depth: 99 feet
Customer Reviews:
Average Customer Review: 4.0 ( 22 customer reviews )
Write an online review and share your thoughts with other customers.

Most Helpful Customer Reviews

5 of 5 found the following review helpful:

5Value for the moneyFeb 23, 2009
By A. J. Minhas "althotos"
For what I paid, this watch is definitely a great value for the money. It is a sharp-looking watch - both sporty and dressy at the same time. It'll go a day and a half or so without being touched.

3 of 3 found the following review helpful:

5Amazing for the PriceJul 13, 2011
By Num47 "Ray A"
I have to say, I feel that my money was well spent on this watch. It looks good, and it functions good. A tad smaller than what I expected but it has a nice look to it, especially with the red/grey streak.
When I received the box, the case it came in was pretty messed up, but the watch itself was fine. Upon looking at the watch, I was impressed with its movement, which is not as nice as my Invicta but does the job. I have to note also that the rotar for the watch is a tad noisy if you're in a dead quite room; but nothing too noticeable besides that. It keeps pretty good time too if worn daily.
The to start...was a serious pain to deal with as I didn't want to take it to a jeweler and I didn't have the right tools. If you buy this watch and want to adjust the band for yourself, look at the bottom of this link and it will explain how:
One of the features I live the most is the lume on this baby. It is by far better than most of my watches as it requires so little light exposure for it to last all night. It was really I pleasant surprise.
Overall though, the watch is a worth while investment if your simply want a work watch or something like that. It's casual and goes pretty much with everything. Just in case the price changes, I paid $56.99 for it if you want to know.

3 of 3 found the following review helpful:

5im impressed and that aint easy.Jun 26, 2011
By cactus
while i have a few seiko 5's, this is the very first one ive bought new. the rest were very used and old.
that said let me tell why im so impressed. first the case. its the perfect size and polished except for the top of the lugs which are brushed. this looks great and was done without a single flaw that i can find. the lens is flat and should hold up well. the case back is transparent and is a neat feature if you want to enthrall small children ,Amish,or any lost tribesmen you may happen across. another neat thing is the crown. its at 4 o'clock and inset a bit. i love that because it keeps the crown out of the way and protected.
the band was well made but i put a leather one on because thats what i do. the internal lug width is 18mm.
the face of the watch is well done and nicely detailed and the lume is impressive for this price range. when my alarm clock goes off at 4:30 in the morning i can still read the time on this watch. not too shabby.
accuracy- i wore this to work for 5 days straight and it gained a total of 6 seconds. this is way beyond what anyone could ever ask for with a mechanical watch.
the only downside i could ever dream up with this watch is water resistance. i would like to see a 100m model but i dont see this being an issue with me.

1 of 1 found the following review helpful:

5Great watch. Amazingly accurate mechanicallyMay 21, 2011
By TechnicalCap
I've had this watch for a week now and love it. After adjusting the band to fit, I've been wearing continually. Has a nice weight and feel to it. Also, I was fortunate to get one accurate to 3 seconds a day! Wow!!! Not everyone will get this accuracy from a mechanical watch, of course.

Don't hesitate to purchase for price. Wonderful timepiece.

5A Review and a RuminationFeb 25, 2012
By Jon Morris
I own a book called "Celebrity Watches." It is essentially glorified advertising, but it is replete with great photographs of watches and some of the people who made them famous. The usual suspects are there--Rolex, IWC, etc.... Each chapter gives you a brief history of the watchmakers, how their watches are made, how they have evolved. It's a good coffee-table book.

I don't know when it was exactly that I realized that I liked my Seiko 5 "Speed Racer" more than any of those in the photographs, but I did. (Yeah, yeah--my budget maybe helped, but still...)

So many timepieces these days are all about the bling, and even the high-end brands make vulgar clunkers. Instead, the Seiko 5 has, thank God, eschewed this pompous aesthetic: its dial clocks in at 39 mm. Not too big, not too small. Similarly, the watch has weight, but it is very comfortable. I know some guys prefer leather bands, but I prefer the metal bracelets, and this one is really nice: again, comfortable, easy to adjust. It manages to call just enough attention to be noticed, but not enough to be flashy. The deployment clasp is solid and, unlike some, easily snaps on or off without ever irritating the skin on your wrist.

There is a subtle elegance to this watch that is really only noticeable in the details. For example, I see that Hamilton makes a similar looking watch: black dial, close in size, steel bracelet... but the crown of the Hamilton is at the 3 o'clock position. The Seiko's crown is low and tucked in at 4 o'clock. This makes it extremely comfortable for people like me who wear a watch on their left hand; the crown never digs into the back of your hand.

Some watches are hard to read in sunlight because of the glare, but the markings on this watch stand out from the black dial, and the hands are readily visible. I especially like the sweeping red second hand.

I wash dishes with the watch on, and so it has gotten wet, and I have never had any problems with it. It should actually be waterproof, but I don't swim much, and I probably would not take a metal watch into a pool anyway.

From the pictures you can see that the underside of the watch allows you to see the actual mechanism, which is a great feature. Before this watch, I had always owned quartz/battery driven watches. I wasn't sure if I would like having a mechanical watch. Yeah, no need to replace batteries is nice, but I was worried about sacrificing precision. Having read other reviews, I took a chance. My experience has been similar to that of others: this watch is within 3-4 seconds per day. Moreover, sometimes it gains those few seconds, sometimes it loses them. So, in the end, I never have to adjust the time. In fact, I haven't reset the watch since I received it.

So all of this got me to thinking about the book, the famous luxury brands, etc., and I am convinced that the only reason the Seiko 5 is not to be found in the book is its price. Seiko makes an excellent, dependable and aesthetically superior product, and it is spurned only because it is within the reach of most people.

Sadly, this is the only reason I can think of for not including this watch in the book, or for buying it. This watch is sharp, sporty and reliable. I love it, and if you like what you see in the pictures, then purchase it. It is even better in hand.

See all 22 customer reviews on
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