Citizen Men's Classic Calendrier Eco-Drive Watch, 12/24 Hour Time, 3-Hand Day and Date, Anti-Reflective Mineral Crystal, Luminous Hands

4.6 4.6 out of 5 stars 1,228 ratings
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Stainless/ Blue Dial

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Sold by: Reeds Jewelers
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From the manufacturer

Mens Classic

SENSIBLE STYLE

CLASSIC


Timeless styling that effortlessly takes you from work to play.

BU2021-51L

THE DETAILS

Model Number BU2021-51L
Collection Men's Classic- Calendrier
Eco-Drive Yes
Base Movement 8729
Clasp Type Deployment Clasp with Push Buttons
Dial Color Blue
Case Material Stainless Steel
Case Color Silver-Tone
Case Shape Round
Case Width 44mm
Case Length 44mm
Band Type Bracelet
Band Color Silver-Tone
Band Material Stainless Steel
Crystal Material Anti-Reflective Mineral Crystal
Water Resistance 0100M

CITIZEN PARTNERSHIPS

Disney

Disney Alliance

The official timepiece partner of Disney parks, runDisney sponsorship, events and more.

ECO-DRIVE

Everybody Solar

Everybody Solar, works to protect the environment and strengthen U.S. communities through solar-energy projects.

eco-drive

American Forests

American Forests is a pathfinder for creating healthy forests from coast to coast, leading the way for creating healthy and resilient forests.

ECODRIVE

Save the Beyond

Global adventurers on the front lines of the environmental battle share their stories in an effort to shine a light on destruction of the environment.

How long is the coverage on my Citizen Watch?

Your Citizen Watch comes with a five-year, limited coverage. When you register your watch online or through our My Citizen App, you will receive an additional coverage year free, for a total of six years coverage.

How do I set my watch?

If you know your model number, go to our brand website and search or browse for your model. When you're on the product page, the setting instructions are listed at the bottom of the "features" section.

How do I get a manual for my watch?

Setting instructions can be accessed through our website and our My Citizen App (available for iOS and Android). To obtain the instructions specific to your watch, you will need to provide the Movement Caliber Number on your watch's caseback.

Can I buy a replacement strap or links for my watch?

Straps, bracelets and links may be available for certain Citizen watch models. To find out if a replacement strap or part is available for your Citizen Watch, please visit our new self-service portal.

Product guides and documents

Product specifications

Watch Information
Brand, Seller, or Collection Name Citizen
Model number BU2021-51L
Part Number BU2021-51L
Model Year 2015
Item Shape Round
Dial window material type Mineral
Display Type Analog
Clasp Push Button Deployment Clasp
Metal stamp no-metal-stamp
Case material Stainless Steel
Case diameter 44 millimeters
Case Thickness 13 millimeters
Band Material Stainless Steel
Band size 8 inches
Band width 23 millimeters
Band Color Silver
Dial color Blue
Bezel material Stainless Steel
Bezel function Unidirectional
Calendar Day-Date
Special features Day/Date, Luminous Hands, Anti-Reflective Mineral Crystal
Item weight 6.07 ounces
Movement Japanese Quartz
Water resistant depth 330 Feet
Warranty Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 0.59 x 0.59 x 0.59 inches; 6.07 ounces
  • Item model number ‏ : ‎ BU2021-51L
  • Department ‏ : ‎ mens
  • Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)
  • Date First Available ‏ : ‎ January 20, 2015
  • Manufacturer ‏ : ‎ Citizen Watch Company
  • ASIN ‏ : ‎ B00PXVU3JO
  • Country of Origin ‏ : ‎ Japan
  • Customer Reviews:
    4.6 4.6 out of 5 stars 1,228 ratings

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,228 global ratings

Customers say

Customers like the appearance, value, and accuracy of the watch. They mention that it's a great looking watch, with a beautiful blue dial and white face. They appreciate the accuracy and value for money. That said, opinions are mixed on quality, performance, ease of use, and fit.

AI-generated from the text of customer reviews

233 customers mention230 positive3 negative

Customers are satisfied with the appearance of the watch. They mention that it is a great looking watch, with a beautiful blue dial and moveable bezel. The white face is awesome to look at and the watch has a weird but classy band. Overall, customers find the watch to be a striking timepiece.

"...The clasp has these beautiful brushed marking that look very classy (see pics).Overall, good watch for the price...." Read more

"...Good looking, high quality product!" Read more

"...The rest of the watch face is very readable. The blue dial is beautiful and I love the moveable bezel to figure world time...." Read more

"...It has a weird but classy band once you figure it out...." Read more

55 customers mention52 positive3 negative

Customers are satisfied with the value of the watch. They mention that it is a good product for the price.

"...Overall, good watch for the price. I think one of the few unique ones with the features and good appearance at the pricepoint 👍..." Read more

"...Have had numerous compliments- Love this Watch! Super Value!" Read more

"...be perfectly honest, it's a very elegant, good looking watch, and great value, but it was also a bit disappointing...." Read more

"...a extra vent for the Tag, I got on Amazon & got this watch at a great price!..." Read more

36 customers mention30 positive6 negative

Customers like the accuracy of the watch. They mention it's a very accurate timepiece with little maintenance. They also appreciate the different timezone calculations and the easy to set world time. Overall, customers are satisfied with the quality and functionality of the product.

"...It has Day of the week, Date of the month, 24/hr, and different timezones calculations...." Read more

"...The blue dial is beautiful and I love the moveable bezel to figure world time...." Read more

"This watch shows what Citizen used to be. Beautiful, accurate and clean looking with attention to detail...." Read more

"Its a shiny eye catching piece. Very accurate also" Read more

25 customers mention18 positive7 negative

Customers like the comfort of the watch. They mention that it's very comfortable to wear, has a great feel, and is wearable as casual. Some say that it comes with a butterfly band that fits comfortably on their wrist. They also mention that the watch is appropriate for casual and dress attire.

"...The band is two-tone silver and very comfortable (my wrist is just over 7.5 inches)...." Read more

"This is a awesome watch for great prices. Very comfortable to wear, easy to read dial and I love the multiple time zone...." Read more

"...As several other reviewers noted, it is somewhat uncomfortable...." Read more

"...It’s great for casual, business casual, and it really wears well in a coastal or nautical environments...." Read more

35 customers mention22 positive13 negative

Customers are mixed about the quality of the watch. Some mention that it has a solid build quality, feels very well crafted, and looks more expensive than it is. However, others say that it was defective, flimsy, and difficult to read dials.

"...Build quality seems very nice to the touch. Bracelet is medium weight and solidity, not too noisy nor ultra quiet...." Read more

"...a great buy, can't beat the eco-drive, good looking but disappointing in a few aspects." Read more

"Beautiful blue face! Functional and Reliable! Have had numerous compliments- Love this Watch! Super Value!" Read more

"...Also can say has a nicer feel of quality." Read more

31 customers mention18 positive13 negative

Customers are mixed about the performance of the watch. Some mention that it works great if you don't lock it away in the dark, and is functional and reliable. However, others say that it stopped working 2 months after purchase, and was not functional or useful.

"Beautiful blue face! Functional and Reliable! Have had numerous compliments- Love this Watch! Super Value!" Read more

"Purchased this in July23 - it stopped working since Dec23...." Read more

"...And that’s also why it stopped. These work great if you don’t lock them away in the dark." Read more

"...Only issue I have had is the crown popping up and stopping the watch." Read more

28 customers mention12 positive16 negative

Customers are mixed about the ease of use of the watch. Some mention that it looks great and is easy to set, while others say that there are no instructions on how to use the time zone settings and there is no user manual.

"...It has a weird but classy band once you figure it out. There were no instructions but as long as you have a microscope you can read the number of..." Read more

"Love the watch! The size is perfect and it was very simple to resize to my wrist. No problems at all with shipping or receiving the product." Read more

"The watch received WITHOUT a manual which should be in a watch with numerous features" Read more

"...Numbers are so very small. Very easy to set up. Looks sharp! Love the fact I won't ever need a battery." Read more

28 customers mention19 positive9 negative

Customers are mixed about the fit of the watch. Some mention it has a great fit, is very similar in size and weight to like size bezels, and is not too big. However, others say that the links were taken out as it was too big, the bracelet was small for them, and the numbers and letters are too small to read.

"...Build quality seems very nice to the touch. Bracelet is medium weight and solidity, not too noisy nor ultra quiet...." Read more

"...The weight is over 1.5 oz less than the Seiko- so a nice weight for daily wear. This is my first Citizen watch and I like the Eco-drive system...." Read more

"...I don't need the manual world time feature and the date is too small for me to just see it at a glance.But all that is not important...." Read more

"...Fits perfectly and I love the dial feature. I would register it as soon as you receive it to activate your warranty...." Read more

Great Watches
5 Stars
Great Watches
Bought this to replace my former eco drive that lasted 12 years. These watches do wear out but at this price point - mid $300s and no winding or batteries I have no complaints ar all. Good looking, high quality product!
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Top reviews from the United States

Reviewed in the United States on June 9, 2023
Color: Stainless/ Blue DialVerified Purchase
Customer image
5.0 out of 5 stars Beautiful Blue Dial, Lots of Useful Info, Quality Watch
Reviewed in the United States on June 9, 2023
The blue dial is definitely my fav. feature and I think the main highlight of this striking watch. In person, it often has a darker shade of blue similar to navy blue, as supposed to the light "baby blue" seen on some pictures. The deep shade of blue changes to a nice, reflective lighter blue depending on light angle. It's pretty cool. This looks best under low/indoor lighting.

I love good-looking watches as much as the next person, but if the design can incorporate useful functions as well, it's a winner for me. And this watch does all of that.

It has Day of the week, Date of the month, 24/hr, and different timezones calculations. And it's solar-powered, so no need to worry about battery changes every few years, which is a plus for an everyday watch.

Build quality seems very nice to the touch. Bracelet is medium weight and solidity, not too noisy nor ultra quiet. The clasp has these beautiful brushed marking that look very classy (see pics).

Overall, good watch for the price. I think one of the few unique ones with the features and good appearance at the pricepoint 👍
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6 people found this helpful
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Reviewed in the United States on February 22, 2024
Color: Stainless/ Blue DialVerified Purchase
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5.0 out of 5 stars Great Watches
Reviewed in the United States on February 22, 2024
Bought this to replace my former eco drive that lasted 12 years. These watches do wear out but at this price point - mid $300s and no winding or batteries I have no complaints ar all. Good looking, high quality product!
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Reviewed in the United States on May 28, 2023
Color: Stainless/ Blue DialVerified Purchase
4 people found this helpful
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Reviewed in the United States on August 30, 2023
Color: Blue Leather Strap/ White DialVerified Purchase
One person found this helpful
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Reviewed in the United States on September 2, 2023
Color: Stainless/ Blue DialVerified Purchase
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5.0 out of 5 stars Glad I bought this vs the bulova marine star
Reviewed in the United States on September 2, 2023
I wanted a blue dial watch to go with my small collection of some movado 's a tag and some other lesesr brands, but still nice watches in their own right (like this citizen) wish I could afford an omega, lol. Anyways None of what I have has a deep blue dial I always wanted to go with a blue wedding ring. I Decided I would budget about 4 to 5 hundred for a good watch. Came down to this and the bulova this is pictured with. This was hard, but it's a top of line citizen vs a low end bulova. Both owned by citizen. Think Toyota avalon vs Lexus ES class. Would rather have the Toyota. Plus this has eco drive that will last close to a decade if well kept before any battery change. It looks great and am happy I got this one.
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6 people found this helpful
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Reviewed in the United States on July 31, 2019
Color: Blue Leather Strap/ White DialVerified Purchase
12 people found this helpful
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Reviewed in the United States on September 29, 2023
Color: Stainless/ Blue DialVerified Purchase
One person found this helpful
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Reviewed in the United States on October 2, 2023
Color: Stainless/ Blue DialVerified Purchase
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5.0 out of 5 stars VERY NICE!
Reviewed in the United States on October 2, 2023
I love it, especially the color. This is probably the second most expensive watch I own. Even though it looked big on the wrist of some of people on some of the pics, it's actually I little small for mine. But I'm a big guy and have big hands. But overall very lovely watch and get compliments on it a lot.
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Top reviews from other countries

Jon Bountalas
5.0 out of 5 stars Beautifully detailed watch
Reviewed in Canada on February 4, 2021
Color: Blue Leather Strap/ White DialVerified Purchase
Customer image
Jon Bountalas
5.0 out of 5 stars Beautifully detailed watch
Reviewed in Canada on February 4, 2021
This is a large men's watch with a 44 mm diameter dial, polished stainless steel.
I'd say it's more of a dressy/office watch, but it could do casual.
This is not a chronograph, if that's what you're looking for, this isn't it.
The watch has 3 working sub dials, the sub dial at 3 O'clock shows the date, the sub dial at 6 shows the hour in 24 hour format, and the sub dial at 9 shows the day.
There are two crowns, one at the normal position to adjust the time and the sub dials, and one at the 4 O'clock position to rotate the inner scale to give you the time in a 2nd time zone.
Lots to look at on this watch:
If you look closely, you'll see the crisp white dial has two different textures on it and 3 different levels.
The rings on the sub dials have tiny little metal edges around them and the indices on the chapter ring are chamfered.
The watch is good down to 100M which means you an go swimming and snorkeling with it, but it's not a dive watch.
The price might seem a bit steep, but in my opinion, you're getting a lot of watch for the money.
Likes:
Keeps great time (expected since it has a quartz movement) and with Eco Drive, you shouldn't have to worry about a battery (capacitor in this case) for close to a decade.
The more time you spend with it, the more you see all the detail Citizen put into the watch.
The navy blue leather strap goes with the blue hands and the deployment clasp is well done and detailed, looks like it was forged and not just stamped.
The watch looks great on the wrist and the blue watch hands change shades as the light hits them.
DIslikes:
The deployment clasp can dig a bit into your wrist if you adjust the strap to that it's really snug.
The crowns don't have a stamp on them, they are blank, which is odd for a watch costing this much.
Reading the Hour and the Day dials takes a little practice.

Really, not much to complain about. It's a great watch, just different enough to be interesting.
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8 people found this helpful
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CL
5.0 out of 5 stars Don't hesitate, its a great watch
Reviewed in Canada on May 3, 2019
Color: Brown Leather StrapVerified Purchase
Calvin Hall
5.0 out of 5 stars Had for a few years now, still working well
Reviewed in Canada on November 11, 2018
Color: Stainless/ Blue DialVerified Purchase
3 people found this helpful
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DrM.Madhusudhanarao,a musiclover
5.0 out of 5 stars Good watch use ful to an international traveller
Reviewed in India on June 1, 2018
Color: Stainless/ Blue DialVerified Purchase
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DrM.Madhusudhanarao,a musiclover
5.0 out of 5 stars Good watch use ful to an international traveller
Reviewed in India on June 1, 2018
Excellent product wearing it is awesome, everybody looks at my watch & asking me about it.but price is high
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2 people found this helpful
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Kelly King
5.0 out of 5 stars Stunning!!
Reviewed in Canada on January 4, 2024
Color: Blue Leather Strap/ White DialVerified Purchase