

🕶️ Own the moment with classic green military style that never quits.
The Seiko Men's SNK805 5 Automatic Watch is a compact 37mm timepiece featuring a forest green dial and matching nylon strap. Powered by a 21-jewel Japanese automatic movement, it offers reliable, battery-free operation with day/date display. Its stainless steel case and Hardlex crystal provide durability, while water resistance up to 30 meters ensures resilience against everyday splashes. Perfectly sized for modern wrists, this watch blends vintage military aesthetics with practical features for the discerning millennial professional.










| Asin | B000LTAY1U |
| Batteries | 1 CR2 batteries required. |
| Date First Available | April 4, 2008 |
| Department | mens |
| Is Discontinued By Manufacturer | No |
| Item Model Number | SNK805 |
| Manufacturer | Seiko Watch Corporation |
| Product Dimensions | 3.31 x 3.78 x 3.31 inches; 2.12 ounces |
User
Excellent, versatile, classic watch. Affordable price.
This is a great watch. So much has been said in other reviews that I won't add to the noise but one area that hasn't been thoroughly discussed I feel I may have something to add to is the color of this specific model (SNK807). As an artist color is paramount and something I'm sensitive to. So having only the pictures online to go on was something of a leap of faith for me, the luxury of holding something in our hands before we buy it is foregone when purchasing over the Internet. The user posted pics all seemed to vary from one another, either being super saturated green or nearly black. So I've posted my own pics which are very color accurate. The first pic is in broad daylight, which is as green as this watch gets. The other two are under normal room lights (daylight fluorescents). My point is, this is a dark olive drab with almost no green at all, which is exactly what I had hoped for. Another aspect of this watch I really like is its versatility. You can strap on a fancy leather strap and its a classy dress watch, or throw a NATO style strap on and head into the wilderness for years at a time and not worry about anything, especially batteries (this is a fully mechanical automatic watch). It may not be obvious, but this is also related to color. The neon green strap this watch is shipped with is bright and has the effect of making the watch face appear more green. Google "simultaneous contrast" for more, or believe me when I say your choice of strap color has a huge influence on what color the watch appears to the eye. I bought a very nice $30 "OD phalanx" strap from Crown and Buckle and am very pleased, plus the khaki NATO strap, both of which are pictured above. My sample ran less than 30 seconds fast for the entire first week I owned it, and has been plus or minus two seconds a day since then. From what I've read of other automatics, this is outstanding especially for the price, and I couldn't be happier with this watch. I have no idea what the negative reviews are talking about, unless they bought from someone other than Amazon and received Feikos. Another thing I'd like to clarify is the Lumibrite. It's brightness and longevity are directly proportional to how much light YOU expose it to before it's in darkness. Ten to twenty minutes in direct sunlight and it will glow like its radioactive for hours. Only room lights and it's a subtle glow for a couple of hours. I didn't really want this feature, but now that I have it I love it. Really, the pattern it has when all the lights are out is really classy. It's like an old Rolex design. Very nice, Seiko. Thanks for a great watch. Will buy again, even if it's just to get the other colors!
User
This is a GOOD watch. No resets at all. "Edit 4"
A few years ago I had this watch stolen from me by someone who apparently liked it as much as I did. I tried not to think about it because I'd bought some higher end automatics, but I really missed it so I finally broke down and bought it again. In its price range there is no better choice in automatic wristwatches. My first one was a perfect watch, and its replacement so far has been every bit as good as the one I got nine years ago. Supposedly Seiko is slowly phasing these out on favor of its replacement, which has hand winding, and hacking, but also a 300% higher price tag. So if you are undecided, let me say again, buy one now. Do not wait, in the future a used one might be your only option.***EDIT***Over a year and still going strong. Not my prettiest watch, but my most reliable and practical one without a doubt! One of these days I want a cream colored one as well.***Edit*** A month in and still the best mechanical watch I have ever had ***Edit***So far I'm liking it very much. "Well made, keeping good time. Nicely styled tribute to the old army issue watches of WWII. Whats nice about it is it is very unisex, its small enough to be worn on a woman of medium build, yet looks quite presentable on a man.***Edit*** Just did a test run for reserve power. Took it off, laid it down flat on its back on a table and it ran for 47 hours! 47 hours and 14 minutes to be exact. So yes, I can change to another watch and it takes approx two days to run to a stop. That's assuming its been worn for a day before it. It gains about a minute a week. For a mechanical watch that is very good. If you don't expect time creep at ALL, do not buy an automatic watch. You will only be happy with quartz. ***Edit***The only thing I don't like about it is I was told the lume was very bright and lasted a long time. The Lume is pretty weak actually.As to warranty, notice that when the seller is directly from Amazon it has a three year warranty. But when its sold by a third party seller and just fulfilled by Amazon it makes no such claim. (And contains no warranty card) So by all means buy it, but make sure its sold AND fulfilled by Amazon. The sellers seem to rotate over a period of days, sometimes third party, sometimes not.I've noticed, third party grey market watches and Feikos are a real problem. Some of the negative reviews are pretty obviously based on fake watches. Yes, fake Seiko 5s are a real thing and a serious problem. (Google Feiko) If your watch was fulfilled by Amazon and not sold by them as well, it probably didn't have a box, and certainly had no warranty card. IF it had no warranty card do NOT accept it and get a refund. Get one directly from Amazon only and not one of their shifty "fulfillment partners"I've seen reviews on here that are clearly Feikos. Whatever you do, be sure you get yours directly FROM Amazon, and NOT from a company using Amazon for fulfillment.Going to test it tomorrow and see how long it really runs without being worn. The watch I have is very solid, and so far has been excellent. The only thing that CAN explain some of the negative reviews is Feikos creeping into the supply chain.
User
Watch never needs winding...
This is a nice watch and it keeps pretty good time.I did not like the wristband, because it was nearly too small for one, and it had the leather backing on the holes for two. This backing eventually dog ears and makes it harder to put the band on. I switched it out with a Speidel twist-o-flex and had a jeweler adjusted it to my wrist size. It now fits like a bracelet and there's no pinching or hair pulling with it. It's now an easy on and easy off watch.It's water-resistant, which means it will not get terribly hurt if it gets wet. Even so, I take it off if I'm taking a shower, bath, or if I'm washing dishes. No sense in pushing the limits of it.Setting the time is really easy. Set your time first, by pulling the crown out two clicks. Make sure you're turning this in a clockwise fashion, because turning it counterclockwise can be done , but it's hard on the watch. Turn the hands until you see the date change. Continue turning until you reach the current time. Make sure your current time is during the daytime, sometime between 4 a.m. and 8 pm.After you have set the time, push the crown in one click and set your date, turning one way , and the day, turning the other way.Your time, day and date should now be set. Push the crown all the way in now and give it two or three turns. You can now put it on your wrist and the motion of your wrist will continue winding The Watch. I've been wearing mine for a week now and have yet to wind it up at all. The motion of your wrist will take care of that for you.The quality of this watches fantastic and I expect this watch to last at least 10 years with proper care, and 20 to 30 years if I don't abuse it. I think you would love this watch and I do recommend it. It is a little bit on the small side, which is not fashionable by today's standard, but I like the size of it, because it's not cumbersome nor is it noticed so much.You may be wondering why buy a watch, since you have a cell phone and you can find the time on there. I discovered that turning on my cell phone every time I want to know the time was becoming cumbersome and not always easy if your hands are full. It's so much easier to just twist your wrist and look at the time this way. The fact that this watch never needs batteries, is a plus.
User
Great Watch Bought 2015
I bought this watch in 2015 for $60 here on Amazon. Now it’s $245??? While I LOVE this watch, that’s overpriced.That out of the way, after more than a decade I can say this watch holds up great. Sometimes, I don’t wear it for more than a month, but as soon as I pick it up, it starts ticking, and I can set date and time. After 24 hours, it typically runs a minute fast. So each morning I correct the time setting. I don’t mind that at all; it makes the watch feel alive compared to, for example, a solar quartz I have that never needs adjustment.I never liked the green strap that came with it, and I replaced it with a khaki leather NATO strap. The khaki leather with the green dial is a nice combination in my view. See pic attached.As to size: at 37mm it’s the perfect size for NORMAL wrists (mine’s 7.25”). Yes, you read that right. Trust me, a 42mm watch is way too large for 99% of guys. This oversized watch nonsense started in the 1980s. Ties got large too in that horrible fashion decade, but have scaled back by now. Why watches have not is a mystery to me (can we blame Stallone & Schwarzenegger?) Look at the proportions to your wrist! Are you trying to compensate for something? Are you blind? Okay, rant over.Anyway, great watch other than the 2026 price.
User
Ridicously good value for the money.
I liked the strap that came with it. I thought it looked and felt great, very sturdy, very stylish. It really surprises me that some people dislike the strap. Unfortunately, it was just a little bit too short for my wrist and I had to replace it. And I've heard that others have found that the straps on Seikos are just a bit too short. My wrists might be thicker than average but I don't think they're freakishly huge.Anyway, other than the strap (which I very gladly would've kept if it was a half-inch longer), I have absolutely no complaints. I got this watch about 6 months ago, and it's running about 7 seconds fast per 24 hours. Some individual watches do worse than this, a few do better, so don't get mad at me if you buy one and it gains 15 seconds a day. I love the dial. I like the way it looks, and the way it's laid out is very functional, with the hours marked inside the seconds and minutes to match the shorter hour hands. I like the different colors for the day marker on Saturday (blue) and Sunday (red). I like having the option of setting the days to Spanish, although I haven't done that yet.And I like the Seiko 5's reputation: simple, reliable, tough, rarely needs repairs, easy to repair whenever it's needed, millions have been made, so it's not hard to find repair people familiar with it. Because of those qualities, It's been compared to the AK-47 and the Chevy small-block 350 V-8. It's also been called the world's least expensive high-end watch. That's a bit of an exaggeration, maybe. But it is a perfectly good watch, for a ridiculously low price. (And today's watch market, unfortunately, is flooded with a lot of out-and-out junk, much of it a lot more expensive than this.) If you ask watch experts, people who make watches and work with them for a living, which brand gives you the most value for the money, there will be a bit of controversy, but the brand that gets mentioned far more than any other, in every price range, is Seiko. This watch, for under $60, is one of the best deals out there.Even if you have to shell out for a new strap because the one it came with was too short.
User
awesome
Just got mine a week ago and I love it. A lot of people say the band looks cheap but I think it's in comparison to the watch. The band looks like it would be on a 80 dollar watch and the watch looks like a 200$ watch. The band is a little too glossy but all the hardware on the band looks great. I have a thin wrist cause I'm 6'4 and lanky and I think the watch is a perfect size. New watches are huge but that's trendy. If I still have this watch in 20 years it will still look great what about those giant things. It looses 4 seconds a day and once every couple weeks I don't wear it long enough and it dies so I reset it to the atomic clock and all is groovy. I like doing that it makes it almost like a pet I have to care for and gives me a more of a sense of contact with it than one would have with perfect items that never give you any trouble. It's like an old Volkswagen you feel more connected cause you have to adjust the valves not just change the oil. It really feels like a quality item and has a decent heft to it but not too much, just enough to know it's built well. I also wear a Wenger Swiss army but I like the look and feel of this better. It's a work watch and cheap enough that if I break it in a year I will just buy another one. I may buy another one just to throw a better band on it for a dress casual watch. I work as a bellhop and it's common for me to have 50 pounds of crap hanging of my hand and wrist and it holds up to it. I'm constantly banging it into things and its fine. I decided to wear a cheap timex digital for a while to save my good watches but the band broke within a month and I decided I'm an adult and vain so I needed an analog that looks good. I hope it will last at least a couple years and think it will. People constantly compliment me on it. I've bought 50 things online and have liked half of them a lot loved about 5 of them and this is the first one I had to review.
User
Nice when it ran. Intermittent after only 3 months. Terrible Seiko Customer Service
Update 7/29 15 -- Seiko Customer Service is terrible. After sending my watch in for repair under the advertised 3-year warranty, I finally had to prompt them for status. They replied that I should check their website and gave me a repair number. They could have called or shot me an email letting me know that they had received it and wanted to talk to me about it. But they didn't. So I went into their website only to discover that they considered the watch not to be under warranty and that it would cost $122.13 to repair it. And I have to pay shipping...again!!! Thinking there must be some sort of mix up since I had sent the Amazon invoice with the watch proving that the watch was purchased new, by me, and that it wasn't out of warranty when it broke. Seiko Customer Service responded that they needed the Warranty Certificate (included in the box with the watch) completed by an authorized Seiko dealer before they would honor the warranty. How am I going to get that, if the order is online and fulfilled by one of Amazon’s vendors? Anyway, this was contrary to the return requirements posted on their Seiko Service Center’s website which reads, "If your timepiece is under warranty please include the fully completed warranty card or the original proof of purchase...". I sent them the proof of purchase (Amazon invoice) which should of been sufficient. And I explained that to them...twice.My response to them posed the simple question, "Why won't you honor a 3-year warranty when I’ve already provided evidence that I purchased the watch and that it’s still well within the 3-year warranty period?” The watch also still looked brand new so it was obvious that it hadn’t been run over by a truck. I added, “The watch only cost about $60 when new. Why would I pay more than the watch cost when brand new to fix it?” They emailed me to phone them again for an explanation of their policy. I won’t waste any more time discussing policy.Out of sheer frustration, I send a complaint email and explanation with the Seiko email chain to Amazon’s Customer Service. And, in stark contrast, Amazon replied promptly, apologized for my difficulty (even though it wasn’t their fault), and cheerfully refunded the cost of the watch. All of this in less than a day. No questions asked. My complaint and request for their help was even well beyond the 30 days return period too. I was amazed. Amazon is great. But I will never buy another Seiko again.As an aside, I had a nice Seiko Aviator’s watch that kept good time for more than twenty years. Really liked that watch until it simply wore out. So I know that Seiko can make good watches, it’s just that their nonexistent customer service got to me this time. These days, companies really should bend over backwards to maintain a loyal customer following. I think of it this way, “How much business has it and will it cost Seiko not to fix my $60 watch?” Would you buy a watch from them after reading this review?Update 7/5/15 -- A few weeks ago this Seiko became intermittent. It would occasionally stop while I wore it. The watch just didn't seem to automatically wind enough like it did when it was new. Poor for only 3 months of normal wear. Didn't drop it or get it wet either. The energy reserve of the watch after normal wear decreased from approx. 18 hours, to about 6 hrs, and then became intermittent while I wore it. When it ran, it kept great time. I have returned it to Seiko for warranty repair or replacement. Will update this review when I hear from the warranty center.April 2015 --This is an excellent watch. Superb quality for the price. I've never owned an automatic before, but I must say that I'm fascinated by the concept. This Seiko 5 is attractive and rugged. Looks nice for all-around wear. And so far, it's very accurate. I put it on before I leave for work and take it off when I return home. If you wear it every day like this, it won't run down. I might have to adjust the time slightly each week, but that's about it. It just works. I'm very satisfied with this purchase.
User
Very nice workhorse watch.
So, I'm no watch expert, but I am a fanatic. I have yet to own a good quality automatic watch, as I've only owned low quality Chinese movement watches, and decided I wanted to start with this watch.Appearance:This is a military style watch. A little smaller than I'm used to. Most of my collection are 40-44mm vs this watch at 38mm. The color is close to OD green and very nice. I live the matte finish off the watch case also. The clear case back allows you to see the movement, which is very good looking in itself. Depending on where you buy the watch from, you'll get the Asian market watch (much less engraving on the movement/rotor, different watch box) or the American market watch (blue box with white pillow, warranty booklet, engraving on the moment/rotor). I have the American market watch. The strap that it came with is canvas, and very comfortable, but I swapped it out for a NATO strap that I had that happened to fit it. If you do wish to change the strap, the lugs are 18mm.Function:The watch is not hand windable and non-hacking (the seconds hand doesn't stop while setting the time). The day is multi lingual (mine is English/Spanish) and takes between 11pm to 3am to change. This is very important to remember when setting the time. I suggest you do a full day rotation when setting the watch to find AM and PM, and make sure you set the day properly. The day/date are quite easy to read. Saturday shows up as blue, Sunday shows up as red. Automatic, for those that don't understand, means it winds automatically from your body movement. The rotor spins, and winds the spring inside the movement. Some people gripe about the watch not lasting for very long if you don't wear it every day, and it won't if you don't move around a lot. The manufacturer gives a 35 hour per reserve. That's fully wound. If you don't have and automatic winder, I suggest you shake the watch for about two minutes after you take it off. That will give you about a full day of reserve without wearing it, before you have to wind it again. The crown is quite small, so setting the time while wearing the watch is a bit difficult. It keeps time well. I've noticed +/- a minute a week. The rotor is a little on the loud side when winding, but not really noticeable when wearing. The lume on it is great, and last for a good but of time. Very easy to read in the dark.Personal Opinion:There's a reason why these watches are so we'll respected. They apparently will last you forever with very little maintenance required. The price point and durability make these an awesome everyday watch. The different variations of the entire Seiko 5 line gives tons of options, and there's a huge group of modders who do custom builds with these watches all the time. If you're looking for a first automatic watch, you won't go wrong with this, and I do suggest one of you're just starting your collection.
User
Excellent once it's wound.
I was fed up with changing batteries in watches and considered simply buying a cheap watch whenever the battery died. Trouble is, cheap watches look cheap so i decided to try a decent automatic watch and found this for a good price.For the first week I was rather disappointed because it kept stopping in the middle of the night. To cut a long story short, you cannot wind this watch manually, all you need do is put it on your wrist and rotate your wrist about 100 times. Since I did that the watch has never stopped. I am very pleased with the watch. It looks good on my narrow wrist, keeps good time and best of all I will never get ripped off by jewellery stores charging too much to replace a battery.As others have said, the only improvement would be to provide instructions that relate specifically to this model.Update: 2 years on and I still like the watch. As others have noted, it does run a little fast. For me it is not a big problem so I do not bother to measure at what rate it gains, I just set it back a few minutes as needed. The case is tough, no scratches and I wear it all the time. The woven band still looks Ok even though the leather strip around the holes has worn a little.Update: the watch is now 7 years old. I have never replaced a battery, which is great. However it now loses about 4 or 5 minutes a day even when fully wound. This may not seem like much but if I forget to adjust it for a few days it can then be 15 mins slow which means that I can not rely on the watch.Update: the watch is now 9 years old. The strap is a bit tatty but otherwise it still looks good. Strangely it is keeping better time than it did 2 years ago. If I make the effort to wind it every 5 days or so (simply by rotating my wrist for a minute or so) it keeps decent time.
User
Great Value, Budget Automatic Watch
Bought on sale for ~30% off. For that price it can't be beat. It's small, light, clearly tells the time, day and date, without a battery. It's cheap enough that I don't mind wearing it everywhere, and risking scratches. It looks good (the dial is darker green than the pictures make out).The reviews regarding other languages in the day dial are correct - it does have other words in there, but I think it's an international market situation. Once you setup the watch correctly, which takes only a minute or two, the days tick over as you'd expect and maintain the language you choose (you can see how it works when you set it up).The watch is light, which some people have construed as 'cheap' but the watch is cheap. I'm wearing this watch everywhere so I prefer it to be light, smaller, and flatter than my other more expensive automatic watches. If you want a premium, heavy, all singing watch, spend 4x the cost of this and then realize you should've spent more. This watch is an everyday work horse. No frills time, date, and day. Simplicity.If you want a no nonsense watch that just works, this is it. Some reviewers have mentioned quality issues on their examples - mine was not one of them. Remember, if you got a watch that wasn't working, you'd leave a review. If it was what you'd expect, you'd almost never come back to review. So there's a review bias here. I'm here because it came up in my boxing day sales, and I thought I'd give a review of ownership since black Friday.
User
It's the Best .
Everything is perfect . I want to buy it again .
User
Un señor reloj
Ha superado mis expectativas.Este Seiko automático tiene una caja de 37 milímetros, lo justo para mi gusto y mi muñeca. Es discreto y elegante. También muy cómodo gracias a la correa de nylon y a su contenido tamaño. Para rematar, se adapta a la perfección, ideal para utilizar a diario.La estética es brutal. Las fotografías que dejo en esta opinión no hacen justicia, ¡tienes que ponértelo en la muñeca para apreciarlo de verdad!Sólo un punto negativo. La correa trae un refuerzo frontal de piel, debería ser suficiente para evitar la rotura de los ojales pero como ves en las fotografías, en la parte trasera hay bastante desgaste después de un mes de uso (y de mucho poner y quitar). No debería ser un problema, a parte de eso la correa parece fiable, por eso mantengo las cinco estrellas.Compra maestra. Relojazo automático con mucha presencia y un precio inmejorable.
User
Very affordable SEIKO
I use it daily as I love it. Sometimes it runs a bit fast, but at least I'm never late. :) I wear it when I swim with no issues (so far). The wristband has been replaced with a NATO strap though as the faux leather started to wither away.
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