World Perpetual A-T
World Perpetual A-T

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World Perpetual A-T



Redefining a classic timepiece with a hint of style, the CITIZEN World Perpetual A-T brings about a new confidence. A timepiece that's not only a solar watch, but powered by any light with Eco-Drive technology and features atomic timekeeping with synchronized time adjustment, perpetual calendar and date. Seen here in a men's stainless steel case and bracelet with navy blue dial. Caliber number H145.

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We stand by the quality and craftsmanship of our timepieces. Every purchase comes with our 30-day, money-back guarantee so that you can be sure your new Citizen timepiece meets your expectations. We offer free returns for added convenience. 

Our 5 Year Limited Warranty accompanies your purchase on, Citizen retail stores, and authorized Citizen dealers.


Our Five-Year Limited Warranty about the Citizen 5 Year Warranty

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Case Size (mm)


Case Material

Silver-Tone, Stainless Steel


WR100/10Bar/333ft [Swimming, Showering & Snorkeling]


Sapphire Crystal


H145, Synchronized to Atomic Time Clock for Superior Accuracy, Atomic Timekeeping Technology with Synchronized Time Adjustment Available in 26 Time Zones, Perpetual Calendar, Date

Setting Instructions FOR CALIBER H145
Download PDF Watch Video
World Perpetual A-T is rated 4.7 out of 5 by 41.
Rated 5 out of 5 by from RADIO CONTROLLED ACCURACY This is the fourth Citizen Watch I that I now own & I must say that I am so far very well pleased with it. I own a white faced Axiom, a blue faced CTO, & a navy blue faced dress watch. While I enjoy each one of these watches (with the exception of the Axiom), they visibly gain a second approximately every 2-3 days. This is bothersome to me, so I purchased this beautiful time piece & well pleased with its accuracy. It has maintained precision to the second for the entire month that I have owned it now. If you're like me & struggle with your watch gaining/losing time, this watch or one similar to it is the answer to that struggle!
Date published: 2019-03-27
Rated 5 out of 5 by from My Go To Timepiece Everything about this watch is fine. The Stainless Steel band is solid and the functionality superb. I have had no problem with the watch connecting to the time beacon. The Eco-Drive powered and the Radio Controlled Accuracy work in fine synchronization. The blue dial is fashionable and the lume on the hands quickly activated by the light. This is one of my favorite watches - classic and contemporary.
Date published: 2018-07-10
Rated 5 out of 5 by from World Perpetual Atomic Timepiece If having a precise timepiece is very important, then this AT (Atomic Time) is the answer. It’s the second Citizen watch I bought for my husband and he is thrilled by this watch. Sync’d with Fort Collins, CO for their time signal and hubby knows he is calibrated. Got a great price too, directly from Citizen Watch, so no need to hop all over the Internet looking for the best price. Never needs a battery is the second best feature of this watch. Spoil him...surprise him with this watch!
Date published: 2020-02-04
Rated 5 out of 5 by from great product i bought in 2011 and now 2019. works perfect i do not ajust daylight saving all automatic
Date published: 2019-03-16
Rated 5 out of 5 by from Above Expectations! I wanted an Atomic watch for my collection and decided to buy this one after doing my research. I wanted a clean dial, easy to operate and classy watch with a nice design steel bracelet. I received the watch, updated the time with the Colorado signal, and in a snap, it was perfectly calibrated. I red somewhere online, prior to deciding on buying this watch, an owner talking about the light refraction on the striated blue dial. This morning I was driving with this watch under the Florida sun (around 11:30 am) and there it was; the light refracted on the dial, creating a rainbow under the sapphire crystal. That owner comment was spot on right! the light refraction was a worthy, colorful, surprise show. I wish I could post a photo for the next person interested on buying this watch.
Date published: 2020-02-16
Rated 1 out of 5 by from What a disappointment... I purchased this piece with very high hopes and was let down tremendously. First, there were multiple defects on the case and bezel. The quality assurance wherever this was manufactured was terrible. Second, the overall quality of the bracelet was far beneath expectations. Cheap feeling and low grade steel, not to mention a stamped clasp. Uneven polishing and some of the brushed finish bear the clasp was rubbing off, despite never being worn. I love the design and aesthetic of the piece but the poor quality left much to be desired. Already shipped back for return.
Date published: 2020-05-27
Rated 5 out of 5 by from Almost perfect... Wear and forget... never worry about monthly date changes or daylight sabings time adjustments... never take it off.. stainless steel, a bit heavy as I used titanium before bit quickly got used to it...
Date published: 2019-09-08
Rated 5 out of 5 by from Nice Watch This watch is great, easy to set and looks good. Feels good on the wrist. I have received nice feed back from those I work with and from family as well. Citizen Watches just keep getting better. I have bought many Citizen Watches to give to Family Members ie; sons and son-in-laws. this one is for the old man for sure.
Date published: 2019-12-08
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can you add a NATO strap to the World Perpetual A-T watch? If so, what size strap?

Asked by: D in Bend
No, a NATO strap cannot be added to the model mentioned. The model watch mentioned has a stainless steel band and a black leather strap that is available. We do not have any other bands available. However, should there be any updates and/or announcements of additional bands being available it will be posted to our website and social media pages. Keep an eye there for these updates and announcements.
Answered by: CitizenCS
Date published: 2019-04-24

Is it possible to get replacement leather straps for this watch? I would like to buy with metal bracelet and buy a couple of leather straps to switch out to. It looks like it uses abnormal lugs so I don't think third party straps would work.

Asked by: Kevin901
Email customer service. Describe exactly what you want for exactly which watch you want it for. They will give you the part number(s) you need and a phone number to call to order the parts. Worked for me. I ordered a metal bracelet to replace a leather strap.
Answered by: PSvn
Date published: 2019-12-03

How's the time signal reception from South America? (i.e: Uruguay) I saw the emissions are from the US, Europe, China and Japan....

Asked by: Mauricio
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