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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.
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Technical Details
- Japan 21 Jewel Automatic Self-Winding Movement (Calibre 7S26)- Stainless Steel Case with Nylon Band
- Day/Date Display with Spanish Option, Luminous Hands and Markers, Hardlex Crystal for Durability
- Screwdown See-Thru Caseback
- Water Resistant - 30M
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By W. Chang (chicago, il)
I have to admit, this watch looked really nice when I got it. I head read previous reviews about it speeding up a few seconds a month, but that wasn't enough to deter me from purchasing it.
Ah, how I admired the watch every day. I would shake it, wind it up, and wear it happily. Until one sad day, when I was walking around in my apartment, I accidentally hit the watch against a door handle...and the face cracked. I wouldn't say it "cracked" as much as it did "chip" at the top where "11" is. As a result, the inside area where the "11" is located is a little bubbled now, presumably also chipped.
I still wear the watch, I just make sure to take it off whenever it might come in contact with water. Some type of rubber or metal lining around the outer rim would have prevented the chipping from happening.
In retrospect, I would have gone for an Invicta non automatic watch for 50 bucks or so. Just be careful if you do decide to buy this one.
By On Time (St. Paul, Mn USA)
I really like thiis watch. I'm sure the band will need to be replaced regularly but various NATO bands are available all over the net. The watch is very accurate, +/- 3 seconds/day but I'm sure individual results will vary. If it ever becomes less accurate getting it adjusted is easy and cheap and should be a part of the annual pro-service anyway. I had that read that this model would stay wound for 36-48 hours but mine has never lasted longer than 12 hours. Still a very nice timepiece for the money.
By BrianH (FL USA)
I've only owned this watch for a couple of weeks now, but I really like it. I heard that automatic watches can gain/loss time, and this one is no different. I've been monitoring this to see just how much change there is. Mine has gained about one minute a week... I think that's a microscopic inconvenience for a sub $100 watch that you'll never have to put a battery in. I owned a Swiss Army chronograph before this and it was far bulkier and required a new battery about once a year. At the very least, you'll have to set the date every other month (on average) anyway, so that would be a good time to sync the time. The face is very easy the read. Having the hours and minutes marked on the face makes it a breeze to read the exact time. The strap is not the greatest, but I like the metal loops. I've owned many watches with "buckle type" straps, and I've had all of them loss the loops long before the strap was worn out. All-in-all this is a great watch for a great price. I look forward to not having to pay for batteries or straps for many years to come! ;)
By M. Cirker (Virginia)
The only thing i do not like about the watch is the battery life is very short. I believe motion/movement generates battery life. I do not wear watches on the weekends, so every Monday i have to reset the time.
Other than that, i like the asethetic and good price.
By Timothy John Lindsey (Tn, U.S.A.)
I hm very happy with this watch. It does run about 2-3 min. fast a week but it's no big deal. Love the retro look and it seems to be a realy tough and well built watch. No complaints.
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Buy Seiko 5 Men's Nylon Band Self-Winding Automatic Watch Model SNK809K2 Now
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