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The world is your playground with the Citizen Eco-Drive Navihawk A-T men's watch, which offers atomic clock synchronization for split-second accuracy. The U680 Eco-Drive also receives radio signals either automatically or on-demand in 43 cities around the world. The high-grade brushed stainless steel case and handsome stainless mesh band help make this luxurious timepiece as stylish as it is functional. The bracelet is secured with a fold-over clasp and a hidden double push button. A power reserve indicator on the round, black face and a rotating slide rule dial ring for pilots are paired with a perpetual calendar, 99-minute countdown timer, and 1/100 second chronograph to keep you on time and in sync no matter where you roam. It is water resistant up to 660 feet and protected by an anti-reflective mineral crystal, so you can take it with you on all your water adventures.
It is absolutely beautiful and stylish. Perfect time. Accurate to the second and easy set up to the atomic time. My only complaint is the watch band. It has a large buckle (clasp) that snaps together to hold it on your wrist. It is quite uncomfortable and put a good sized dent in your wrist. The band is very good looking but not very comfortable. I bought another stainless steel band on E Bay that doesn't have that large clasp poking into your wrist. Band width is also an oddball at 23MM. Most bands are 22 or 24 MM. I did find a melanise mesh band that was 23MM. It fit perfect and is very comfortable and also good looking. It matches the watch finish.
I love the accuracy of the watch! I really enjoy checking it against my computer and seeing its bang on to the second. The watch band is extremely comfortable and fairly easy to adjust to the right size. The watch also is charged by daylight so it never needs to be wound. That being said, the digital windows on the watch are extremely difficult to read and the watch features are impossible to use without referencing the manual or YouTube.
I’ve wanted this style of watch for a long time and I’m glad I finally got it.
The atomic time function is what it’s all about. Having the time radio transmitted to the watch daily, the “Official Atomic Time,” is the big draw, knowing that the time on your wrist is exactly correct is the reason for having this watch. The reality of it means adjusting the time manually is a slightly complicated process and automatic adjustment requires a radio signal which isn’t always available. For example while traveling in Greece I am out of radio range of the European transmitter in Germany so I get no updates. Good thing I had it properly set in NY before leaving.
I like Eco-Drive watches. It’s great never having to worry about watch batteries dying and I like that this watch has a charge indicator and power saving features.
The water resistance is rated for 20bar or 200 meters, it has been more than adequate for swimming and snorkeling and daily washing and bathing.
The overall functionality is excellent. Having two alarms is convenient and useful. Being able to simultaneously display time in two time zones (3 really if you count UTC) makes communicating easier as there’s no need to remember the number of hours ahead or behind you are. I find that the chronograph and timer are invaluable tools that I use multiple times a day.
The digital displays are somewhat difficult to see in dim light but press the nightlight and they glow in bright easy to read orange.
The controls are easy to use once familiarized, mostly just requiring the crown to be pulled out and twisted to select the mode, further adjustments are made by a combination of pulling and twisting the crown and pushing the two buttons.
I always wanted a watch with a slide rule. Now that I’ve had it for a while I think it’s a function I can do without. The slide rule is easy to turn with the 8 o’clock crown but the numbers and marks are small so it’s hard to see and use. Also remembering the various points used for conversions and calculations takes lots of practice. It may become easier to use with time but for now I think it is just a neat curiosity. The only real downside is that it complicates the face and makes it busier than if it was absent.
The watch looks nice on the wrist, the brushed finish on the body contrasts nicely with the coin edged polished crown. The luminosity of the hands and hour marks is excellent, bright and long lasting. The layout of the face is crowded and some of the dials seem unneeded, particularly the 24 hour and UTC but the overall vibe is of aircraft instrumentation so jam packed is part of the charm. The chainlink bracelet is very comfortable and doesn’t pull my arm hairs which was a concern. The clasp is solid and somewhat large and bulky, combined with the relatively inflexible bracelet I found that I need to have the bracelet slightly longer than I normally would to maintain my preferred tightness.
Overall I love this watch.
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I have an eclectic collection of watches including Tag, Invicta and Seiko. I saw the Citizen Navihawk online, read the reviews and bought it for myself for Christmas. No regrets! It's a complex yet elegant looking timepiece with a lot of features so you won't get bored with it. I love the AT accuracy. I found a great YouTube video for initial set up and had it up and running in 5 minutes. I haven't worn any of my other watches since purchasing the Navihawk. I receive compliments on it almost daily. You won't be disappointed!