- Made in USA or Imported
- Round silver-tone watch featuring textured black dial with date window and luminous indicies
- Eco-Drive is fueled by light so it never needs a battery
- 41 mm stainless steel case with antireflective sapphire dial window; Water resistance: 10 Bar
- Japanese quartz movement with analog display. Turn the crown to set the time
- Stainless steel band featuring fold-over push-button clasp with safety
- Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving. . Operational temperature range –10 to +60 degree celsius
4-Year Watch Protection Planfrom SquareTrade
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From the manufacturer
For over 40 years, Citizen's proprietary Eco-Drive technology has served as the prime example of how the brand is dedicated to the world and making its environment a better place. A simple yet revolutionary concept, Eco-Drive harnesses the power of light from any natural or artificial light source and converts it into energy, eliminating the need for any battery replacement. Using renewable energy to keep Citizen Eco-Drive watches running forever.
Watch Sizing Guide Citizen Eco-Drive™ FAQ Enhance your sophistication by a number of degrees with this handsome timepiece. Eco-Drive technology features a permanently rechargeable lithium-ion cell. Stainless steel case and bracelet. Fold-over clasp with push-button closure. Luminous three-hand Eco-Drive™ quartz movement with date display window. Dial face includes hour markers and minute track. Water resistant 100 meters/330 feet. Citizen Watch offers a five-year limited manufacturer's warranty on all their products. For more information, please visit their website and see the "Service Information" section. Measurements: Case Height: 40 mm Case Width: 40 mm Case Depth: 9 mm Band Width: 20 mm Band Circumference/Length: 9 1⁄2 in Weight: 5 oz
- Department: Mens
- Manufacturer: Citizen
- Product Dimensions: 5.12 x 5.12 x 5.12 inches
- ASIN: B004JKBEUM
- Item model number: BM7100-59E
- Is Discontinued By Manufacturer: No
- Date First Available: January 17, 2011
- Customer Reviews:
|Brand, Seller, or Collection Name||Citizen|
|Dial window material type||Sapphire Crystal|
|Clasp||Push Button Foldover Clasp With Safety|
|Case material||Stainless steel|
|Case diameter||41 millimeters|
|Case Thickness||10 millimeters|
|Band Material||Stainless Steel|
|Band length||7.5 inches|
|Band width||22 millimeters|
|Bezel material||Stainless steel|
|Special features||Water Resistant|
|Item weight||4.96 Ounces|
|Water resistant depth||330 Feet|
|Warranty||If this product is sold by Amazon, please review the manufacturer’s website for warranty information. If this product is sold by another party, please contact the seller directly for warranty information for this product. You may also be able to find warranty information on the manufacturer’s website.|
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|Shipping||FREE Shipping. Details||FREE Shipping. Details||FREE Shipping. Details||FREE Shipping. Details||FREE Shipping. Details||FREE Shipping. Details|
|Band Material Type||Stainless Steel||Stainless Steel||Stainless Steel||Stainless Steel||Resin||Stainless Steel|
|Band Size||7.5 inches||8 inches||mens-standard||7.75 inches||9 Inches||8.25 inches|
|Band Width||22 millimeters||20 millimeters||21 millimeters||22 millimeters||26 millimeters||22 millimeters|
|Bezel Material Type||stainless-steel||stainless-steel||stainless-steel||stainless-steel||resin||stainless-steel|
|Case Diameter||41 millimeters||41 millimeters||42 millimeters||40 millimeters||45 millimeters||43 millimeters|
|Case Material Type||stainless-steel||stainless-steel||stainless-steel||stainless-steel||resin||stainless-steel|
|Case Thickness||10 millimeters||10 millimeters||11 millimeters||11 millimeters||15 millimeters||10 millimeters|
|Clasp Type||Push Button Foldover Clasp With Safety||Push Button Deployment Clasp||Deployment Clasp||Deployment Clasp||Tang Buckle||Push Button Foldover Clasp With Safety|
|Dial Window Material Type||Sapphire Crystal||Sapphire Crystal||Sapphire Crystal||Mineral||Mineral||Mineral|
|Special Features||water-resistant||—||—||Date, Hour, Minute, Second||light, stop-watch||—|
|Watch Movement||Japanese Quartz||Japanese Quartz||Japanese Quartz||Japanese Quartz||Quartz||Japanese Quartz|
|Water Resistance Depth||330 feet||330 feet||330 feet||330 feet||660 feet||330 feet|
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* I've had another Eco-Drive for almost two years and I like the system. Like a mechanical automatic, it's an energy scavenger, and that appeals to me much more than a battery-eater.
* The cheaper Seikos don't permit handwinding, so unless you know you'll be wearing them all day every day, you will be setting them very frequently, which with day and date is a bit of a chore. In any case I don't want or need the day displayed on my watch. I can't understand why Seiko put day and date on 99% of their models. Sometimes less is more!
Here are my observations:
Clean and straightforward but with some nice touches, like the angle on the lugs or the protection around the crown.
The case, having normal lugs, will also accept a nylon, silicone or leather strap of your choice, unlike some other models which have an integrated bracelet.
The finish on the case, dial and bracelet is really good. A sapphire glass is a wonderful feature at this price point.
The bracelet strikes a good balance - it's substantial without being hefty. It does make a little noise as it moves but not too much, and not that tinny sound that you get from folded links. All the links including the end links are solid here and the removable links (of which there are plenty) are held by split pins.
By turning the crown I can tell from the extra resistance (compared to my BM7193) that there are some fairly serious o-rings in there and I wouldn't hesitate to swim, snorkel or scuba with this in a pinch.
I know that opinions vary widely on this, but the lume seems excellent to me. I can read the time all through the night, and even into the early morning when it's starting to get light outside and I can make out shapes in the bedroom. Bear in mind that it's a very grey and rainy December here in the PNW and daylight is in short supply. Yet even without deliberately 'charging' the dial, it's legible all night long. The only way it could be better would be if there was an extra dot at 12; because all the hours look the same it is possible to misread the time - especially if you are sleepy and/or don't pick up the watch.
In its first two weeks, the watch has gained under 1.5 seconds. That is better than my Rolex Oysterquartz could manage when it was brand new. And unlike that one, which ticked very loudly, this is inaudible unless you hold the watch next to your ear in a very quiet room. The seconds hand lines up quite well with the minute markers and its jumping movement has a nice quality which could be described as 'fast but not too fast'.
$150 might seem like a lot of money for an uncomplicated quartz watch, but I believe you do get what you pay for, and that includes the 6-year warranty, which is exceptional, as well as a rather decent bracelet. These movements can be serviced - Citizen publishes technical manuals which include lubrication points - so they are not simply low-end disposable units. I would not be surprised if this were to tick on for several decades before needing any attention.
It's a great looking watch, there is no doubt about it. It is dressy enough to wear with a suit, yet bold and masculine enough to go with jeans and sportswear. I especially like the dial with the accentuated silvery markers and over-sized silver hands that contrast beautifully with the black dial. The luminance is extraordinary, a beautiful shade of cyan or blue, it glows brightly even in the dim light of dusk or dawn.
As for the case, it is a nice combination of brushed and polished stainless steel and a very noticeable size at 41mm, not counting the crown. I like the crown guard that will keep the crown from snagging on shirt cuffs and such. It is rated at a 100M for water resistance, and that is more than adequate for the occasional splashing it might get. A sapphire crystal tops it off and I think that's a real plus although you would expect it on a watch that costs over $200. So there's no doubt that the case and crystal, if necessary, will stand up to many year's abuse and hard use, toil and sweat, and still look good.
The bracelet, being solid-link stainless steel with a push-button deployment clasp is also what you would expect on a more expensive watch; it has solid end-links as well. It was a little difficult to fit my wrist until I discovered that the half-links are not really "half" links. A full link measures about 9mm whilst the half-links measure about 6mm, so you really have a lot of variance. For example, once I got the size close, it was still too tight; taking out one full link (9mm) was not enough, taking out a full and a half (15mm) was too much, but taking out the two half-links (12mm) got it right. Kudos to Citizen's engineering department for solving the problem.
As for the Eco movement, I haven't had it long enough to know how it will hold up or how accurate it is, but after 48 hours the watch is still dead-on, accurate to the second. One thing I think is a sign of a quality quartz movement is when the second hand ticks right on the second markers, every time, all the way around the dial. This one does just that.
And finally, another aspect of Citizen's quality is the fact that the watch came to me charged up, with the winding stem pulled out and the watch stopped; as soon as I set the time and pushed the crown in it started and hasn't stopped since. I left it under a light all night to get it on its way to being fully charged. Once charged it won't take much to keep it that way, according to the user guide, although I will leave it out of my closed watch box when not wearing it -- whenever that will be, which I am sure will not be too often.
The overall quality and workmanship of this Citizen Eco is exceptional and comparable to many watches that cost 2-3 times as much, or more, and this is coming from someone who owns Omega, Rolex, Hamilton and other fine Swiss watches, quartz and auto. It is my first Citizen and I am quite sure it won't be my last. If you are looking for a beautiful watch that is accurate, durable, and relatively inexpensive, you cannot go wrong with this Citizen ECO.
All in all, an excellent watch that I wouldn't hesitate to buy again. I use to be a Seiko guy, but their quality has fallen over the last five years. I am now a convert to Citizen.
UPDATE 1/17/2019: almost 18 months later and still keeps great time and the crystal does not have a mark on it. I am changing my rating to 6 Stars.
Top international reviews
The Corso is an extremely versatile sports watch. The dial is a nice black with multiple levels (a "parquet" texture in the centre with plain black around the indices). The indices are applied and striped with blue lume, as are the sword-style hands, although the lume is relatively weak. The case is a classic shape, with a screwdown caseback and 100M of water resistance, so you can swim with it no problem. Even the H-link bracelet is well-made, with solid links and endlinks. Additionally, the scratch-resistant sapphire crystal is an excellent addition at this price point. Not to mention, the Eco-Drive solar technology makes the watch worry-free and prevents you from having to open the case to change the battery.
My gripes with the watch are limited. The biggest issue would be the date window—it is very small and is sunken well below the dial, making it difficult to read in dim light (the dial actually casts shadows on the date window). The stamped clasp on the bracelet feels a little cheap, but I guess that is to be expected at this price point. I am also not sure why Citizen felt the need to write "SAPPHIRE" on the dial. Sapphire crystals are standard on nicer watches; printing it on the Corso dial cheapens the watch by advertising sapphire as a central selling-feature. Finally, although the 41 mm size is probably normal these days, I think a size of 39-40 mm would have looked more proportional (similar to a Rolex Explorer).
Overall, this is an amazing watch for the price and serves well for an everyday piece in both casual and formal settings. Throw it on a leather strap when you're wearing a suit and you'll look like a champ! Can easily serve as your only watch.
I now have 2 citizen watches ,1 I’ve worn for 6 years on construction sites with zero scratches on the crystal