Citizen Nighthawk BJ7017-50ET review
Watch History
- Date acquired: Nov 26 2005
- Production date: Aug 2005
- Source: Capital Mall, eBay
- Price paid: USD147 (w/o shipping)
- Status: In production
Background
Having a plethora Seiko watches by late 2005, I thought of trying out a Citizen watch for a change. The Citizen Nighthawk had garnered a cult following in SCWF and received a mixed bag of responses. Some liked its undeniably classic and unique looks. Others shunned it because it was quartz controlled, too large or the dial looked too busy and distracting. For some, it was a love-at-first-sight kind of timepiece while for others like me, it was an acquired taste.
As for me, I researched the Nighthawk for several months before deciding to buy it. I had first tried on the Nighthawk at a local watch store and I thought it was kind of gruesome looking on the wrist. It’s big. And the dial has real estate so wide that it goes all the way to the bezel. But it’s one heck of a solid watch, comprising some design influences perhaps from Breitling and mated with Citizen’s reliable Eco-Drive technology.
When I was ready to buy one, I chose to bid on eBay as I knew I could get the price that I wanted, which is about USD150 or less. The local store was asking MYR950 (USD283) for it and I decided to buy from Capital Mall on eBay again.
The Citizen that I bought is the affordable Asian version, model BJ7017-50ET. It shares some similarities with the so-called “Euro Nighthawk”, which actually has a different designation - the AS2031-xx series. The European Nighthawks considered luxury models - they are equipped with radio controlled, atomic clock synchronization and sapphire glass.
The U.S. version BJ7005-59E (left) and the Japan version PMD56-2776 (right)
Citizen Japan also has its own Nighthawk for its domestic sales - the rather expensive PMD56-2771 with a Duratect-treated titanium case and bracelet. It looks very much like its European siblings, except for the Duratect-treatment and with no stainless steel options.
The Eco-Drive in a nutshell
Citizen’s Eco-Drive is basically a solar powered quartz movement which converts light energy into electricity, which in turn charges a built-in rechargeable lithium ion battery. Citizen cleverly disguises its solar panels into the watch dial or sub-dials, you wouldn’t notice them unless you looked carefully! You can charge the watch by natural or artificial light. The brighter the source of light, the quicker the watch charges its internal battery. However, it’s advisable not to leave the watch in direct sunlight for long periods as high temperatures can cause damage to its electronics.
Fully charged, an Eco-Drive watch can go without light (like being stored in a drawer) for 6 months or for years on sleep mode, depending on the caliber. The Eco-Drive Perpetual Calendar models have a power saving or sleep mode that disengages the hands while internally keeping track of the time, stretching its power reserve to a few years.
Sadly, the Nighthawk’s B877 caliber is a standard Eco-Drive movement and once fully charged, continues to tick in darkness for six months without needing light.
Citizen claims a typical lifespan of 20 years for its solar cells but nobody has owned an Eco-Drive watch for two decades let alone 10 years, so we’ll see if the Eco-Drive technology lives up to the manufacturer’s claims.
On another note, Citizen’s arch-rival Seiko does have a few solar powered models (like the V145 caliber) but Citizen has the upper hand in solar watch marketing. While Seiko prefers to push its Kinetic range of watches, Citizen decided to capitalize on its strength in solar powered timepieces. That said, in the late 1990s Citizen did release the Eco-Drive Duo movement, which is a hybrid motion and solar powered watch. It was probably superfluous to have a Kinetic-like movement as well as solar cells.
A discontinued BJ3074-58 Eco Drive Duo
It doesn’t take a rocket scientist to figure out that it’s effortless to charge an Eco-Drive Duo using light instead of wrist motion. The hybrid movement was also expensive and Citizen later decided to drop the Eco-Drive Duo models.
Citizen really stands by its Eco-Drive technology. It has released many types of watches based on Eco-Drive movements, from their entry level models to their hand made, artistic Campanola flagship range. The Japanese company is in fact, slowly phasing out its battery operated quartz models in favor of the Eco-Drive.
I will cover the different versions of the Nighthawk in a separate post in the future.
Look and feel
The Citizen BJ7017-50ET appears to be carved out of a solid chunk of stainless steel. On the 22mm solid linked bracelet, it weighs about 150 grams unsized. It is mostly satin finished and leaves no traces of shiny “bling”. I would say the Nighthawk is more of a serious tool watch rather than dressy. The 200m water resistance rating lends credibility to its tool watch theme. Not that you’d want to take this watch for scuba diving - the Nighthawk is not meant to be a diver’s watch in the first place.
A unique feature of the Nighthawk is its large and deep, sunken dial. It’s been touted as a pilot’s watch owing to its rotating internal E6B flight rule bezel. At first glance, the dial seems to be cluttered. Once you’re accustomed to the watch, you’ll learn to ignore the background text and reading the time becomes a lot easier. When the Nighthawk is viewed at arm’s length, the 800-plus tiny characters become a distant blur.
The dial looks rather busy when viewed closely…but
…from a distance the clutter becomes less noticeable and the dial stands out clearly!
The main crown is the screw-in type and has a nice knurled design in addition to the signed Citizen Promaster logo at the end. A nice touch. The other crown at the 8 o’clock position rotates the inner flight rule bezel but isn’t as nicely finished as the main crown.
Manipulating the main crown is easy, it unscrews quite easily and has two detents - the first detent is to set the date and adjust the hour hand (to suit the local time zone). The second detent adjusts the main hands which also turns the 24-hour hand.
The BJ7017 interestingly, comes with the much coveted satin finished, three dimensional relief caseback with its U.S. counterpart (the BJ7000-xx series) sorely lacks. For reasons known only to the Citizen Watch company, only the U.S. Nighthawks have the actual “Nighthawk” logo on the dial, full lumed index markers, framed “12? and “6? numerals and a rather plain, mirror-like polished caseback with laser etched markings.
Below is a photo of my Nighthawk’s caseback. Note the deep relief text and world map embossing, which is uncommon for a watch at this price point.
The embossed relief caseback is fitted only to non-US Nighthawks
Setting the time
It was pretty confusing for me to set the time (and second time zone) when I received the watch. I figured out that I had to set the dual time hand first, since it’s geared to the main time hands. Then I had to adjust the hour hand according to the local time. Since I find a fixed 24-hour time (synchronized to the local time) pretty useless, I would first set the 24-hour hand to GMT, which is 8 hours behind my time zone. Then I would push in the crown to the first detent and spin the crown clockwise to adjust the hour hand to my local time.
Setting the hour hand is kind of tricky because it only goes clockwise - you can’t reverse the direction. If you miss the intended hour, you’ll have to move the hand one complete revolution. Unfortunately this also advances the date when you cross midnight so you’ll have to set the date (be sure that the time isn’t between 9 p.m. to 3 a.m. when you adjust the calendar) to the previous day. Then adjust the hour hand to the desired time.
What I noticed about the watch is that the hour hand has some excess play in it, so it doesn’t precisely point to the hour. Therefore at 6 o’clock, the hands my not line up straight as it should be. I discovered that I have to manipulate the main time hands to get the hour hand to line up properly. Perhaps this is an inherent flaw of an adjustable hour hand or the B877 movement itself.
While most modern Seiko watches change the date by turning the crown clockwise, Citizen prefers the opposite direction - anticlockwise. I have to remind myself that with the Nighthawk, changing the date means anticlockwise direction or I’ll mess up the hour hand’s position.
Dimensions
I measured the BJ7017-50ET’s dimensions as follows:
- Diameter: 42mm (w/o crown), 46mm (w/ crown)
- Lug-to-lug: 47mm
- Thickness: 13mm
- Lug width: 22mm
- Bracelet width: 24mm, tapering to 18mm at clasp
The bracelet is top notch, solid links all around and flush fits at the lug ends of the watch. The clasp has dual push buttons and a signed “Citizen” flip lock but has only three micro adjustment holes. Which means that the watch can be either too snug or loose. On the wrist it sits rather comfortably and doesn’t shuffle about.
The BJ7017-50ET viewed from the rear. Image from PMWF Watch Corner.
The Nighthawk is also a dual-time or GMT watch. It sports a semi-circular twin-scale with a double ended, asymmetrical 24-hr hand. It looks pretty confusing how to read the second time zone at first. The Nighthawk’s 24-hour scale is divided into two segments - the inner scale in white text representing 1 a.m. to 12 p.m. while the outer scale, printed in hard-to-read deep red color, represents 1 p.m to 12 a.m.
Below is a borrowed photo of a closeup of the BJ7017-50ET’s dial. In this example, the dual-time is set to the local time (7:32 pm) instead of a different time zone.
The dual time hand (the small red pointer) is pointing to past 1900 hours
The double ended 24-hour hand has two tiny pointer heads resembling an aircraft, the shorter hand has a white pointer while the longer side is colored red. At any one time, only one of the hands will hover above the appropriate scale. To read the second time zone, all you need to do is to match the color of the aircraft-like tip to the scale’s color. Therefore, the shorter white hand will only reach the inner a.m. scale while the longer hand will extend to the outer p.m. scale.
The Citizen Nighthawk has a different type of luminous compound than Seiko’s. It uses Superluminova lume and glows a cool blue hue. Quite a stark contrast from the traditional green lume from Seiko. Citizen’s lume doesn’t glow as brightly as Seiko’s LumiBrite but it fades much more slowly than Seiko’s. I have no trouble reading the time for at least six hours in total darkness once I energize the lume sufficiently.
The hour and minute hands are distinct from one another and you’ll easily distinguish them in the dark. The “12? and “6? numerals are also lumed and aids in reading the time. I wished the second hand was also lumed, but it’s unfortunately not - it’s just painted white.
The Nighthawk’s lume emits a blue color and lasts several hours (borrowed photo)
Specifications
- Caliber: B877
- Caseback: B877-S015979
- Movement type: Solar powered quartz, 32kHz crystal
- Loss/gain: Less than 15 sec/month
- Construction: Stainless steel
- Crystal: Mineral glass, flat profiled
- W.R. Rating: 200m
- Luminous material: Superluminova
- Power reserve: Approximately 6 months
- Battery type: Internal rechargeable lithium-ion
- Movement Japan, cased in Japan
Here are some pics of my Nighthawks. The one with the inner white bezel is the model BJ7010-16F on leather strap (also an Asian variant).
Conclusion
If you’re looking for one, I would recommend that you get the Asian version rather than the U.S. one. The lovely relief caseback is worth its admission price. The Asian model is probably the least expensive and it comes in a variety of dial colors - light blue, black with white inner ring and all-brown. Choose the U.S. BJ7000-series if you prefer the “Nighthawk” logo and the full lumed index markers.
Where to get the BJ7017-50ET cheaply? It seems that Capital Mall has stopped selling/auctioning the Nighthawks lately. I would recommend that you check out the auctions from Time Paradise, also a reputable seller based in Singapore. Good luck! ![]()
What I liked:
- 200m water resistance
- Solid link S/S bracelet with dual push buttons and flip lock
- Striking looks, high contrast dial
- Blue colored lume
- E6B flight rule calculator
- Dual time capability
- Eco-Drive solar powered movement
- 22mm regular lugs
What I didn’t care for:
- Excess play in the hour hand
- Date window a bit too small
- Second hand doesn’t line up precisely to minute markers
- Not enough micro adjustment holes in bracelet clasp
Quartzimodo’s Rating
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Comments
Hi Ovidiu,
Glad to know that you’re a proud owner of the Citizen Nighthawk. It’s a very unique timepiece and holds its own against other watches.
The Citizen Nighthawk will remain a classic Eco Drive watch for decades, I’m sure. Thanks for dropping by and hope you’ll visit my blog regularly.
Wow excellent review. Many thanks. I’ve been looking at this watch for months and I think this has given me all the details I needed to go ahead and get one.
Hi Maker,
Thanks for the positive comments. I’m glad that my review has helped you choose a Nighthawk. You’ll be very happy with it, trust me.
Hello Quartzimodo aka Stratman,
Im Dito from Indonesia, Im the person who ask you where to find Seiko divers watch in Malaysia last time,remember? Thank you for the information. After a long search, I bought a Seiko black monster which is difficult to find in Indonesia at a best price. Actually, Seiko price in Indonesia is more cheaper than Malaysia if you know where the best store. Perhaps, when you visiting Indonesia, I will show you there. In here,I still found Black Knight and the White one easily,also a lot of Seiko5 model. But if you searching for Monster or SKX 007,it almost impossible. Also, you may find a lot of high quality secondary watch in Batutulis Market,where you can find Swiss or old Seiko model (ex. Seiko Bullhead or Old Omega Seamaster) at good condition and lowest prices!
Actually,I just bought a second-hand Citizen Nighthawk,cause it make me falling in love since the first time i saw. It is truly a simple and very good watch and I just read your review just now. Never know that we have same taste about watch. A japanese watch enthusiast,specially in utility watch.
Anyway, thanks for the guidance last time,and please inform me if you want to have watch hunting in Indonesia, someday!
Dito
Hi Dito,
I’m glad to know that you’ve gotten the Citizen Nighthawk, albeit a used one. It should remain trouble free for a long time, provided that you keep the watch exposed to light frequently.
Every country’s Seiko distributor has its own marketing department and they decide which models are to be sold. It’s strange that you can’t find either the Monster or the SKX007 whereas the 7s26 Knights are abundant. In my country it’s the exact opposite.
I haven’t visited Jakarta yet but if I do I will definitely get in touch with you. I’m more interested to find vintage Seiko watches and I hope the Batutulis Market will have the calibers and models that I want.
-Q
Hi,
Just bought a black nighthawk in Montreal, had seen it before and liked it. Once I got home and took some time to look at the watch, I noticed that the second hand didn’t match at all with the second markers. Very annoying. Decided to research the subject and that’s how I came upon your site. It seems that you have noticed this problem too but I am wondering how much inaccuracy is acceptable ? Could there be a mechanical problem ?
Hi Lalit,
I’ve had good luck with some of my Seiko quartz watches whose second hands hit precisely on the markers. For a quartz watch to have a precisely positioned second hand, two things are required:
1. A perfectly manufactured stepping motor for the second hand.
2. Precisely printed minute markers on the dial.
If your watch’s second hand is consistently off the markers all around the dial, it’s possible to have an experienced watchmaker gently nudge the second hand precisely to the 12 o’clock spot. This should make the second hand fall squarely on all minute markers.
If your watch’s second hand hits the markers precisely in some areas of the dial and is off in other areas, then it could be a case of an imperfectly printed dial. There’s not much you can do about this.
It might interest you that even high end Swiss models are not spared of this phenomenon - not even the Omega Seamaster quartz is 100% dead-on the markers.
Quartz watches are usually mass produced and manufacturing defects do occur. However, the manufacturer will usually point out that the second hand inaccuracy is within their manufacturing tolerances.
Quartz movements are also subject to a degree of second hand backlash or free play. Excessive backlash will result in poor precision in the second hand motion.
If I were to buy a quartz based watch (that includes Citizen Eco Drive and Seiko Kinetics) and if the brick-and-mortar store has more than one piece of the same model, I would definitely choose the one with the most precisely hitting second hand. If the store has only one model left, I’m out of luck.
From my experience and reading others’, Seiko quartz based watches appear to be more precise on the markers than Citizen’s but even that, not all Seiko watches are that precise.
I wished the Nighthawk had more precise second hand motion (neither of my Nighthawks are) but I’ve seen more expensive watches like the Tissot PRS200 with far worse second hand precision.
Hope this helps. Just enjoy the watch as it is.
Quartzimodo.








































Hi Stratman,
Thank you for this great review. I also bought this watch 6 months ago, based on your pictures and opinions on the forum. Really a great watch.
Best regards,
Ovidiu