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  • Citizen Men's BM6400-00E "Eco-Drive" Stainless Steel and Canvas Watch
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Citizen Men's BM6400-00E "Eco-Drive" Stainless Steel and Canvas Watch

149 customer reviews

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  • With its light-powered Eco-Drive, durable canvas strap, and metal-lined sizing grommets, this military-inspired Citizen watch is replete with masculine details.
  • Equipped with Eco-Drive, this watch charges in natural or indoor light and never needs a battery.
  • Japanese Quartz movement with analog display
  • Features protective mineral crystal dial window, date window, luminous hands and markers, brushed stainless steel case
  • Water resistant to 660 feet (200 M): suitable for recreational scuba diving

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Product Description

Explore new, exciting depths with this men's Eco-Drive 200 Meter dive timepiece. Equipped with large stainless case, black canvas strap, and boldly luminous hands and oversized numbers, you'll be able to easily read the time whether you're diving deep into the sea or relaxing next to the pool. Additional features include a three-hand function, date indicator window, non-reflective crystal, screw-back case and screw-down crown.

Since its foundation in 1930, CITIZEN has promoted a multi-cultural mindset that fosters excellence and creativity. The very name of the brand conveys a deep respect toward craftsmanship and considered as familiar by citizens the world-over. So as a “citizen” of the world, we bear the responsibility to help cultivate a culture of positive change and on-going evolution through our craft. We take that mission seriously and steadfastly welcome what the future may bring.

As a true manufacture d’horlogerie, CITIZEN integrates a comprehensive manufacturing process from creating individual components to a watch’s final assembly. It’s an artisan’s approach to watch making based on pushing forward the boundaries of technology and leveraging our experience toward exploring new possibilities.

One pivotal technological breakthrough was the development of a light-driven watch. CITIZEN pioneered this engineering innovation well ahead of other watch manufacturers as early as 1976, which led to the launch of the highly acclaimed Eco-Drive in 1995. Utilizing electrical power converted from virtually any light source, this extraordinary innovation changed forever the way watches could be powered. Eco-Drive eliminated the need to ever replace batteries, which made it especially beneficial to areas where such specialist batteries were not obtainable. This leveled the field for citizens of virtually every country to be able to experience unrestricted joy of wearing and using a CITIZEN watch.

The product development policy, “The Fusion of Technology and Beauty,” remains a constant motivation for us to merge cutting-edge technology with perfection of design beauty, which as a consequence inspires people to strive to be their best at any time.

CITIZEN launches a new campaign in collaboration with Wieden+Kennedy, Better Starts Now. This is the simple belief that no matter who you are or what you do, it is always possible to make something better — and now is the time to start doing it. We believe that better and now are both infinite, and that there is always a next ‘better’ and a new ‘now’ in which you can start pursuing it. It was clear from the onset of this project that we are dedicated to this ideal…not to the past but to the present, and all the way we can improve it. To help communicate this belief to the world we have created a new global CITIZEN brand movie, brand identity and brand website that represents out Better Starts Now philosophy.

  • Product Dimensions: 4.3 x 3.9 x 8.3 inches; 1 pounds
  • Shipping Weight: 9.9 ounces
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • Item model number: BM6400-00E
  • Amazon Best Sellers Rank: #22,694 in Watches (See Top 100 in Watches)
    • Average Customer Review:
      149 customer reviews

    Product Specifications

    Watch Information
    Brand, Seller, or Collection Name Citizen
    Model number BM6400-00E
    Part Number BM6400-00E
    Model Year 2011
    Item Shape Round
    Dial window material type Mineral
    Display Type Analog
    Clasp Buckle
    Case material Stainless steel
    Case diameter 40 millimeters
    Case Thickness 11 millimeters
    Band Material Canvas
    Band length mens
    Band width 21 millimeters
    Band Color Black
    Dial color Black
    Bezel material Stainless steel
    Bezel function Stationary
    Calendar Date
    Special features solar
    Item weight 1 Pounds
    Movement Japanese quartz
    Water resistant depth 660 Feet

    Customer Questions & Answers

    Customer Reviews

    Most Helpful Customer Reviews

    69 of 70 people found the following review helpful By LouisAZ on February 22, 2008
    Verified Purchase
    I am slowly converting my watch collection from a mix of self-winding automatic and a few quartz to all Citizen Eco-Drives. This is the latest addition and I am delighted with it. The watch is a "beater" will be perfect for weekends, travel and whenever you want a watch that can take anything. The stainless steel case and bezel have a satin finish and the screw-down crown is knurled. The dial is an oil black, not a flat black as you might expect in a "military" watch. The large numbers and markers have a ton of luminous material and glow like beacons in a dark environment -- perfect for night viewing. The second hand is precisely registered with the second markings on the chapter ring. The crystal is a flat, hardened mineral crystal with an anti-reflective coating (presumably on the interior of the crystal) so there is very little reflection. This is a large 42mm diameter watch -- not including the crown {which is guarded with shoulders]. It is not clear if the woven, fabric band is nylon or some other material; it is well made and the holes for the clasp are reinforced with stainless steel rivets. I really like this watch and ... at a mere $105 ... this is a great buy.

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    45 of 46 people found the following review helpful By D. Smith on April 5, 2008
    This watch is more impressive in person than in the photos I've seen. My first impression was that it is big or at least not too small. It has a certain heft to it that I like. It doesn't have a cheap feel.

    The watch case is about 40mm in diameter (without the setting crown) and about 11mm in thickness. The lug width seemed to be about 21mm. The case has a brushed metal finish; although the screw on case back is bright and shiny. It could probably be used for signaling in an emergency. The only other shiny surface is a narrow ring around the base of the bezel; however, this is virtually unnoticeable. The edges of the case have been smoothed which helps with the day to day comfort of wearing the watch. The canvas strap is comfortable and has 7 metal eyelets (holes) for fastening to the wrist. My wrist is nearly 7.25" and I fasten it in the 5th hole (3rd from the end). The strap has two keepers and one of them is metal and the other is canvas. The metal keeper is strong with a bit more thickness than you might expect. I casually tried to bend it with some finger pressure, and it would not give. The buckle is also a little beefy and has the same level of smoothness as the case along with the same brushed metal finish. It nicely complements the rest of the watch and feels well made.

    The large numerals provide a lot of surface area for the luminescence, and it's obvious this watch was designed to be easily read at night. I can still read the time throughout the night even after most of the glow intensity has gone. The dial is very black and contrasts well with the hands and numerals so it is also very easy to read in bright sunlight.

    The 200m water resistance (WR) rating is a nice bonus.
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    49 of 53 people found the following review helpful By Midpack Biped on December 17, 2008
    Verified Purchase
    I was unable to decide between this model and the #BM8180-03E, which is a more utilitarian looking model. So I ordered both, but am keeping this. My impressions:

    - The BM6400-00E is more substantial. I'm a medium-build guy, and I thought the BM8180-03E looked small for my wrist size.

    - This is a better looking model than the BM8180-00E. I'm very picky when it comes to watch styles, and I really like the way this looks. This is more 'dressy' yet is not too fancy looking as an everyday watch. It will look much nicer with a suit than the BM8180, which is much cheaper looking

    - I was worried about the date display being too small. I think it looks smaller than it is because of the oversize numbers on the dial, but it is still totally readable.

    - The band on the BM6400 is longer than the band on the 8180, and the black looks much better than the green. I find the band to be comfortable, and am not in any rush to go swap it out for another.

    - I prefer the 'screw-down' crown on the BM6400 - less worries about water getting into the case. The BM8180 has a two-notch crown that doesn't screw down.

    All in all, this model is more than worth the extra $25 dollars between the two, and is a great deal at this price.
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    19 of 19 people found the following review helpful By IntheWoods on May 5, 2008
    Verified Purchase
    This is my 2nd Citizen. The first was a promaster dive watch I beat up hauling steel as a truck driver (never had a problem with function). For cosmetic reasons, I let that one get away years ago. Have worn a variety of hodge podge battery powered disposable watches since, and have grown somewhat tired of looking for a new watch every couple of years.

    Was intrigued by the eco-drive technology and never having to open the case and replace a battery. Which always risks the integrity of the watch without sending it back to the factory.

    I'm a one watch kind of guy. That's why I chose this black model which will easily do double duty.

    This is no puny watch. It's substantial. The build quality is excellent. The lined canvas (maybe cordura nylon) band is quite good and durably built, although uncommon and for some may take getting used too. But thanks to the lining it is quite comfortable. Nice thing, due to the build of the watch it is easily replaceable with any after market brand.

    The date window is small but serves it's purpose quite well.

    And no batteries to replace. It's a keeper, especially at this price. Kudos to Citizen.
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