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Citizen BN4021-02E BN4020-05E Promaster Metric Altichron JDM Duratect Titanium Japan Watch
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Citizen Promaster Metric Altichron JDM Duratect Titanium Japan Watch

Citizen logo
Alternate Model Number: BN4020-05E
Our Price: US$412.95 change currency
RRP: US$950.00 Sale 56.53% Off Save US$537.05 (56.53%)
Availability: Sold Out


Metric Measurements (Meters) Height measuring capability reaches as high as 10,000m and as deep as 200m below sea level.
Similar Models
Glass Type
MineralScratch Resistant
Case Material
Duratect Treatmenta revolutionary technique in which metal like stainless steel or titanium are put through a special treatment to harden the surface. This results in a harder scratch resistant material.
Strap Material
Solar Powered
Manufactured In
Made in Japan
Eco-Drive Technology (Recharged by any light source; Never Needs a Battery)Citizen’s advanced technology, the watch is powered by artificial and natural light.
Accuracy of +- 15 Seconds Per Month
Power Reserve Indicator
Calendar (Date Display)
Insufficient Charge Warning
Overcharging Prevention Function
Luminous Hands and Markers
Rotating Inner Ring
Dial Color
Case Width
Case Depth
Water Resistance
This product is supplied with:
  • Genuine Citizen Watch
  • Official Citizen 1 Year International Warranty Booklet
  • Multi-Language Instruction Manual
  • Original Citizen Giftbox (Small Charge Applies)
  • Why do we charge for the watch box?
citizen box

We understand that when shopping online - there is always a risk that you may not like the product that you receive. That's why we provide a 30 Days No-Questions-Asked return policy with all products. You simply ship the unused (Tags + Manual + Packing) product back to us and we will issue a full refund.
* Please note that we will only refund shipping fees for items that are defective.


All Citizen products ship with a 1 Year Citizen International Warranty Card.
* Please note that service centres in some countries reject warranty claims for purchases from offshore online vendors. In such cases, we are also available to service your product for up to one year.

Please contact us to initiate a return.

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The brand Citizen has been synonymous throughout the years with high quality, reliable, well-crafted, stunningly luxurious watches. Since 1930, Citizen has given us classic designs as well as innovative techniques that is constantly evolving. They have pioneered in groundbreaking watch technology which they continue to improve upon, year after year. Perhaps the most important breakthrough was the development of solar powered watches, which they launched and named as Eco-Drive. Using electrical power converted from virtually any light source (artificial or natural) to charge and power the watch.

Citizen continues to be one of the leading watch manufacturers in the world. They persist on expanding their own ideas on innovation thus improving function, style and durability.

Here at we strive to bring you the latest Citizen watch collections at affordable prices!

Customer Reviews (6)

Mr - Review by from Australia
5 out of 5
About DFI:

I have just finalized my second purchase from DFI and I'm very impressed by the way they look after their customers. An ultra-competitive price combined with superlative after-sales service mean that DFI will be my first port of call when contemplating future purchases.

About the watch itself:

WOW! This picture does not nearly do justice to this gorgeous chronometer. You think you have fallen in love with it already? Well, wait until you receive it. You wont be able to stop stealing glances at it. Sort of like a beautiful girl on a train.
The size may seem large on paper though it is well proportioned and the symmetrical arrangement of the compass/altitude buttons with the oversize crowns actually makes the watch face appear SMALLER than its actual size.
The multilevel. multicoloured arrangement of the face and hands is unlike any other watch I have seen. It is not very hard to see why this is one of DFI's top sellers. Aesthetic appeal aside, this is one hell of a time-piece. Couple that with the altitude and compass functions and you have a watch that is just jaw-droppingly awesome.
Good watch and good service. - Review by from South Korea
Review by <span>homin</span> from South Korea
5 out of 5
시티즌 프로마스터 알티크론 (BN4021-02E) 구매후기입니다.
예전부터 눈여겨오던 시계인데 리테일가가 비싸서 아쉽게도 계속 못사던 시계를 dutyfreeisland 통해서 훨씬 저렴하게 잘 구입했네요.ㅎ
우선 시계의 특징에 대해 말씀드리면 고도측정(10,000m~-200m), 나침반기능, 에코드라이브 파워리저브 정도가 되겠네요.
크기는 50mm인데 생각보다 많이 커보이지는 않습니다. 제 손목둘레는 16.5cm 정도 되니 참고하세요.
재질은 듀라텍 티타늄입니다. 매우 가볍고 튼튼해 보입니다.
글라스는 미네랄글라스라서 조금 아쉬움이 있지만 충격이나 파손에 강하다는 점이 오히려 장점이 될수도 있겠네요.
무브먼트는 에코드라이브 쿼츠입니다. 에코드라이브 제품은 처음 사용해보는데 매우 편할것 같습니다.
배터리 교체할 필요도 없고 기계식 시계처럼 용두를 감거나 계속 착용하고있어야 할 필요도 없습니다.
그리고 파워리저브 창이 있어서 에코드라이브 충전 정도를 알수 있는데 이게 은근 편한것 같습니다.ㅎ
디자인은 개인취향이지만 제눈에는 매우 이쁩니다. 다른색상(오렌지,노랑)도 있지만 가장 무난하면서도 옷입기 편한건
이 모델이 아닐까 싶네요.
여름에 반팔티셔츠에 이거 하나면 코디 끝날것 같습니다.ㅋ
아주 만족스럽네요~
이제는 dutyfreeisland에 대해 얘기해보겠습니다.
처음 구입해보는데 일단 live chat이 꽤나 좋습니다. 한국이랑 시간차이도 별로 안나서 궁금한것 그때그때 물어봤는데
매우 친절하게 응대해줬습니다.
가격도 다른곳에 비해 매우 저렴했고 dutyfreeisland 답게 구입하면서 혜택도 봤습니다.
배송은 FAST SHIPPING으로 했는데 정말 놀랍게 빨랐습니다.ㅋ
지금까지 직구 직배송하면서 받은 가장 빠른 시간이 아니었나 싶습니다.ㅋ 주문하고 3일인가 4일만에 받았으니까요.ㅎ
급하게 필요하신분들은 FAST SHIPPING 추천드립니다.ㅎ
그리고 저는 박스옵션을 선택하지 않아서 파우치에 받게 되었는데요.. 이게 일단 쉬핑되면 박스를 추가할수 없다고 하니.
주문할때 신중히 주문하는게 좋겠네요~
Dutyfreeisland..첫구매부터 좋은 인상을 받아서 앞으로 자주 들르게 될것 같네요~
제품, 서비스 모두 만족합니다. 추천드려요~
I wrote the review by KOREAN.
This watch is great.
The funtions are awesome and the design of this one very good for men.
The size is little bit big(50mm) but It still fits me.
Thanks for reading my review.
Thanks - Review by from Ecuador
5 out of 5
I like this watch. Thanks
Best Watch - Review by from Ecuador
5 out of 5
This is awesome watch
Thank you so much
A stand-out watch at an amazing price - Review by
5 out of 5
The Citizen Altichron is a very unique watch, that touches on a number of different watch archetypes, but certainly doesn't disappoint.

Lets cover the main issue here - size. This is a big watch, at 49mm wide, something that may put a few people off. Luckily tho, it wears smaller, due to it's short lugs, their curve towards the wrist and the moulded strap.

I don't have the largest wrists out there, I'm normally on the medium-small end of straps, but it sits very nicely.

The strap itself is 22mm, not too wide and not too narrow, for the size of the case. The liquid rubber is amazingly soft and supple, with a really nice horizontal line detailing near the top, with a really beautifully shaped buckle. This buckle really compliments the watch, is incredibly sturdy and has a great Citizen engraving that really adds to the detail and makes it feel premium.

The buckle and the case are both the same metal - that's right, Titanium. Having had a similar sized steel watch, that I had to return due to it's weight pressing into my wrist bones, the Ti case of the Altichron is amazing.

Light is an understatement, but with sub-millimetre fit and finish, it feel solid and the complete opposite of cheap. It's weight makes it so much more comfortable that a steel watch of the same size, you really don't notice you're wearing it.

The finish on the Titanium is a satin one, really handsome, without being too flashy, or too rugged. The pushers and crown area all polished, which doesn't stand out as much as you might think it would. They add a nice accent to the case. The lines of the case are really well considered and everything seems to just sit in the right place.

This leads us onto the star of the show - the dial. What a dial.

The depth of the dial is something that's hard to tell on a photo, but it's deep! It's like looking down into a little diorama, with activity and detail wherever you look. The outer edge has a rotating bezel which moves smoothly and easily, operated with the top right screw down crown. Unlike other watches with this feature, which I've found to be stiff and hard to adjust while wearing, this is easily twisted, both directions, to mark time, altitude or bearing. After all, this is an action watch, not a lounging watch.

The busy-ness of the dial is very appealing and the inner and outer rings of numbers is very reminiscent of the B-Uhr pilot watch style.

The Lume on the main hour markers and the hands are lovely and bright in the dark and really stand out from the dial even when not glowing, making at-a-glance time reading far easier than you might expect.

The date window next to the Citizen logo are perfectly, classically, placed and highly legible. I like how the width of the single digit dates is set to take up the whole window, with the double digit dates narrowed to take up the same space. Lots of solid touches.

The dial at the 9 maker shows the power reserve most of the time, very handy if you've not worn the watch in a week or so. It also points to the 1000m reading when the altimeter is activated.

The altimeter is really fun to watch. The presser is soft, without click, but feels solid a purposeful without lateral movement. The dedicated altimeter hands have wonderful day glow paint applied to their tips, making them highly readable, yet clearly separate from the time hands, ensuring there is no chance of confusing them.

First the 1000m hand turns to point to the first number, then, with a little wiggle, the 100m smaller red hand rotates smoothly and points to it's own reading. Finally, the longer yellow hand rotates leisurely to it's own maker, given the 10m reading in 2.5m increments.

It's really satisfying to watch, taking about 10-15 seconds to complete, and fun to show off to friends. It's entirely analogue nature makes it feel much more refined than a digital or LCD readout.

The final action is the compass - far quicker, and simpler, a press of the red pusher, causes the small red hand to wiggle, then home in on North.

Overal, I cannot think of much that would improve this watch. At £300, the price is amazing for the build, looks, materials, accuracy and functions you get.

I personally chose to transfer the buckle over to a 4mm thick Tan Leather strap and replace the liquid silicone one, but I'm a sucker for silver and tan leather watches. You may wish to wear it on Nato or a black leather, or even something very rugged - the great thing is, with a different strap, the watch case is so versatile, you can wear it smarter or more casual very easily.

Purchasing from Duty Free Island was easy, super fast and everything that was promised. I chose not to have the box delivered, so it came in a small package, appropriately labeled, delivered without customs charges, within a week. It included all the documentation and was clearly brand new from Japan.

Excellent communications, tracking number provided, aftersales support - what more could you want??

If you have any doubts about buying this watch, from this shop, don't. It's an amazing deal, from a professional operation. I just wish the stars went up to 6.
5 stars - Review by
5 out of 5
Great watch with nice features. Quite big, however good feel on relatively small wrist (18,5 cm) due to good shape of the case and short lugs. Rubber is soft and easy to close and open. Case finish is simply perfect. Readability is great in real, compared to what you see in pic.

Service of the shop is 5 stars. Good packaging. I ordered the watch in pouch, it was however stopped by customs. Big user guide and the watch could not come through. Maybe shop could consider sending just the watch.

No regrets about buying here.
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