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The Citizen Series 8 880 GMT NB6031-56E: textured black dial, black-and-blue 24-hour bezel and integrated steel bracelet.

Quick answer: The Citizen Series 8 880 GMT NB6031-56E is a 41 mm stainless steel automatic GMT watch powered by Citizen's in-house Caliber 9054, a 24-jewel, 28,800 vph movement with a 50-hour power reserve, an independently adjustable local hour hand, accuracy of -10/+20 seconds per day and magnetic resistance to 16,000 A/m. It has a textured black dial, a bi-directional black-and-blue "Batman" GMT bezel, sapphire crystal, a sapphire exhibition case back, 100 m water resistance and an integrated H-link bracelet. At Lexor Miami it costs $1,265, well below its $1,695 U.S. retail price, with free U.S. shipping and free returns.

• Lexor Miami price: $1,265 (U.S. retail $1,695)
• Movement: Citizen Caliber 9054 automatic GMT, 50-hour reserve
• Case: 41 mm stainless steel · 13.5 mm thick · 49 mm lug-to-lug
• Water resistance: 100 m · Anti-magnetic to 16,000 A/m
• Availability: In stock and ready to ship · limited stock

Shop the Citizen Series 8 GMT – $1,265

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Introduction: The Citizen That Changed Expectations

For decades, most Americans knew Citizen for one thing: Eco-Drive, the light-powered quartz technology that made reliable, affordable watches a household name. The Series 8 collection is Citizen's answer to a different question: what happens when Japan's largest watchmaker applies its full engineering muscle to a premium mechanical watch?

The answer is the Citizen Series 8 880 GMT NB6031-56E, a modern automatic travel watch that has earned praise from enthusiasts and reviewers alike. One review summed it up in a single line: "The design. The build. The finish. All beyond reproach." Another noted that the watch "moves the accessibly priced Japanese watchmaker upmarket."

The NB6031-56E pairs a textured black dial with a black-and-blue 24-hour bezel, a color combination collectors nickname "Batman." Inside is the in-house Caliber 9054, a true GMT movement with a jumping local hour hand, a 50-hour power reserve and serious anti-magnetic protection. And at Lexor Miami, it costs hundreds of dollars less than its U.S. retail price.

In this guide we cover everything a U.S. buyer should know: the Series 8 story, the Caliber 9054 in detail, verified specifications, how to use a GMT watch, who this watch suits, how it compares with other Series 8 models and rival GMTs, and why buying from an authorized dealer matters. If you are ready, order the Citizen Series 8 GMT NB6031-56E here.

The Citizen Story: From Tokyo to the World

Founded in 1918

Citizen traces its roots to the Shokosha Watch Research Institute, founded in Tokyo in 1918. The name "Citizen" was chosen for the company's first pocket watch in 1924, reflecting the idea that a quality timepiece should be within reach of every citizen. That philosophy still shapes the brand today.

A history of innovation

Citizen has built a reputation on technology. It pioneered light-powered Eco-Drive watches, developed radio-controlled and satellite-synchronized timekeeping, and created some of the world's thinnest and most accurate movements. Citizen is also one of the few watch groups that manufactures its own movements at scale, supplying not only its own watches but also other brands through its Miyota division.

Why the Series 8 matters

The Series 8 collection represents Citizen's premium mechanical line: automatic movements, sapphire exhibition case backs, refined case finishing and modern, architectural designs inspired by contemporary Japanese cities. The 880 GMT, announced in 2023, added a true travel complication to the family and quickly became one of the collection's most talked-about models.

Built in Japan, made for global travelers

The Series 8 GMT is designed for people who live across time zones: frequent flyers, remote workers with international teams, and anyone with family abroad. It combines Japanese engineering with a design that feels at home in Miami, New York or Tokyo.

Key Features of the Citizen Series 8 880 GMT NB6031-56E

• Authentic Citizen Series 8 from an authorized dealer.
• In-house Caliber 9054 automatic GMT movement.
• True "flyer" GMT: the local hour hand jumps in one-hour steps without stopping the watch.
• 50-hour power reserve with manual winding.
• Accuracy of -10/+20 seconds per day.
• Anti-magnetic to 16,000 A/m (JIS Type 2).
• 41 mm stainless steel case, 13.5 mm thick, 49 mm lug-to-lug.
• Brushed and polished finishes with bevelled lugs.
• Bi-directional 24-hour bezel in black and blue for day/night.
• Textured black dial with applied indices and date at 3 o'clock.
• Orange-tipped GMT hand for the second time zone.
• Anti-reflective sapphire crystal and sapphire exhibition case back.
• 100 m water resistance.
• Integrated tapered H-link steel bracelet with push-button fold-over clasp.

Benefits: Why the Series 8 GMT Stands Out

1. A real travel watch, not a decorative one

Many affordable "GMT" watches only add a 24-hour hand that you set together with the main hour hand. The Caliber 9054 lets you jump the local hour hand forward or back independently, the way premium Swiss travel watches do. Land in a new city, pull the crown, click the hour hand to local time, and the minutes, seconds and home-time GMT hand keep running.

2. Track up to three time zones

Use the main hands for local time, the orange GMT hand for home time on the 24-hour bezel scale, and rotate the bezel to read a third time zone. For anyone working with teams in Europe, Asia or Latin America, that is genuinely useful every day.

3. Anti-magnetic peace of mind

Phones, laptops, tablets, magnetic bag closures and speakers can magnetize mechanical watches and make them run fast. The Caliber 9054 is rated to 16,000 A/m, many times the standard requirement, thanks to non-metallic alloys in its hairspring and escapement. In daily modern life, that is a meaningful advantage.

4. Exceptional value

Reviewers consistently describe the Series 8 GMT as excellent value. At Lexor Miami's price of $1,265, compared with the $1,695 U.S. retail price, it becomes one of the strongest offers in the mechanical GMT category.

5. Versatile, everyday design

The black dial and black-and-blue bezel are sporty but not loud. The integrated bracelet gives the watch a contemporary, sleek look that works with business attire, smart casual and weekend clothes.

6. A movement you can admire

The sapphire case back reveals the in-house movement and its striped rotor, something you rarely see from Citizen and a pleasure for anyone who appreciates mechanical watchmaking.

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Technical Specifications

Brand	Citizen
Collection	Series 8 – 880 Mechanical GMT
Reference	NB6031-56E
Movement	Citizen Caliber 9054, automatic with manual winding
Functions	Hours, minutes, seconds (hacking), date, GMT/24-hour hand, independently set local hour
Jewels	24
Frequency	28,800 vph (4 Hz)
Power reserve	Approx. 50 hours
Accuracy	-10/+20 seconds per day
Magnetic resistance	16,000 A/m (JIS Type 2)
Case material	Stainless steel, brushed and polished
Case diameter	41 mm
Thickness	13.5 mm
Lug-to-lug	49 mm
Bezel	Bi-directional 24-hour GMT bezel, black and blue
Dial	Textured black, applied indices, date at 3 o'clock
Hands	Luminous hour and minute hands; orange-tipped GMT hand
Crystal	Sapphire with anti-reflective coating
Case back	Sapphire exhibition case back
Water resistance	100 m (10 bar)
Bracelet	Integrated, tapered stainless steel H-link
Clasp	Fold-over clasp with push buttons
Weight	Approx. 168 g
U.S. retail price	$1,695
Lexor Miami price	$1,265

Is 41 mm the right size?

A 41 mm diameter with a 49 mm lug-to-lug is the sweet spot for most men's wrists between roughly 6.5 and 8 inches. The integrated bracelet curves down from the case, so the watch wears comfortably and does not overhang average wrists. At 13.5 mm thick, it slips under a shirt cuff more easily than many dive-style GMTs.

The Caliber 9054: Citizen's Mechanical GMT Engine

In-house automatic movement

The Caliber 9054 belongs to Citizen's 90-series of premium automatic movements. It beats at 28,800 vibrations per hour (4 Hz), a frequency associated with smooth seconds-hand sweep and stable timekeeping, and it carries 24 jewels.

A true GMT with a jumping local hour

The 9054 is what collectors call a "flyer" or "traveler's" GMT. The local hour hand can be moved in one-hour jumps independently of the minute hand and the 24-hour GMT hand. Changing time zones takes seconds and never stops the watch, so you keep perfect accuracy.

Anti-magnetism by design

Citizen uses non-metallic alloys in the hairspring and escapement, giving the 9054 a magnetic resistance of 16,000 A/m. Citizen classifies this as Type 2 under the Japanese JIS B7024 standard, far above the 4,800 A/m of Type 1. In practical terms, everyday electronic devices placed as close as 1 cm should not affect timekeeping.

50-hour power reserve

Fully wound, the 9054 runs for around 50 hours. Take the watch off on Friday evening and it will usually still be running when you pick it up on Sunday.

Factory-regulated accuracy

Citizen specifies -10/+20 seconds per day. Reviewers who wore the watch daily reported performance better than that figure. Like any mechanical watch, actual accuracy depends on wearing habits and position.

Visible through sapphire

The sapphire exhibition case back reveals the in-house Caliber 9054 and its striped automatic rotor.

The exhibition case back shows the movement's machine-striped rotor and clean, engineering-led finishing. Reviewers noted that the finishing is better than most watches in this price range and more attractive than many mass-produced Swiss movements.

How to Use the GMT Function: A Quick Guide

Step 1: Set home time

Pull the crown to the time-setting position and set the minute hand and the orange GMT hand to your home time, reading the GMT hand against the 24-hour bezel.

Step 2: Jump the local hour

When you travel, pull the crown to the intermediate position and turn it to jump the main hour hand forward or back in one-hour steps. The date changes automatically as you pass midnight.

Step 3: Read two time zones at a glance

The main hands show local time; the orange GMT hand on the bezel shows home time. The black half of the bezel indicates night hours and the blue half day hours.

Step 4: Add a third time zone

Rotate the bi-directional bezel by the number of hours difference to a third city, and read that time from the GMT hand against the shifted bezel scale.

Example: you live in Miami and fly to Madrid. Jump the local hour hand forward six hours. The orange GMT hand still shows Miami time on the bezel. Rotate the bezel to read the time for your team in Bogotá or Los Angeles.

Mechanical GMT or Eco-Drive? Choosing the Right Citizen

Many shoppers who search for a Citizen watch know the brand for Eco-Drive, its light-powered quartz technology. So should you choose a mechanical Series 8 or an Eco-Drive model? Here is a simple way to decide.

Choose Eco-Drive if you want zero maintenance

Eco-Drive watches charge from any light source and can run for months in darkness once fully charged. They are extremely accurate, rarely need a battery replacement and are ideal if you want to grab a watch and never think about it. Citizen's Promaster and Eco-Drive models at Lexor Miami are excellent choices for that buyer.

Choose the Series 8 mechanical GMT if you love watchmaking

A mechanical watch has a living heart: a balance wheel oscillating eight times per second, a rotor that winds as you move and gears you can watch through the sapphire case back. It is the kind of craftsmanship that connects a watch to centuries of tradition. Many collectors find that emotional value as important as the time itself.

Accuracy

Quartz and Eco-Drive watches are more accurate, usually within seconds per month. The Caliber 9054 is rated -10/+20 seconds per day, which is typical for quality mechanical movements and more than precise enough for daily life. A quick adjustment every week or two keeps it on time.

Power

The Series 8 GMT winds itself as you wear it and holds about 50 hours of reserve. If you rotate several watches, you may need to wind or reset it after a weekend off the wrist.

Long-term ownership

A mechanical watch benefits from periodic servicing, and in return it can last for generations. Many owners consider that part of the pleasure of owning a mechanical piece.

The bottom line

If you want the most practical, maintenance-free watch, choose Eco-Drive. If you want a true mechanical travel watch with an in-house movement, character and a story, the Series 8 880 GMT is one of the most compelling watches Citizen has ever made.

Design: A Closer Look

Side profile: an angular case with brushed surfaces, polished bevels and a bracelet that tapers smoothly from the case.

The "Batman" color scheme

The black-and-blue bezel is one of the most popular GMT color combinations, nicknamed "Batman" by collectors. Blue marks daytime hours and black marks nighttime, making the second time zone easy to read at a glance.

A textured black dial

The dial has a fine texture inspired by the architecture of modern Tokyo. It adds depth and catches light differently through the day, while applied indices and a date window at 3 o'clock keep it highly legible.

An architectural case

The Series 8 case uses an angular, faceted middle section with alternating brushed and mirror-polished surfaces and polished bevelled lugs. It looks crisp and modern, closer to a design object than a traditional sports watch.

The integrated H-link bracelet

The bracelet flows directly from the case and tapers toward the clasp. Its H-link construction is comfortable and substantial, and reviewers noted the watch's "nice heft." The fold-over clasp with push buttons opens easily and closes securely.

Legibility day and night

Luminous hour and minute hands and luminous markers keep the time readable in low light, while the anti-reflective sapphire crystal reduces glare in bright Florida sun.

Who Should Buy the Citizen Series 8 GMT NB6031-56E?

Frequent travelers

If you fly for work or pleasure, a true flyer GMT is the most practical complication you can own. The NB6031-56E makes time-zone changes quick and keeps home time always visible.

Remote and international professionals

Teams spread across Miami, New York, London, São Paulo or Asia? Track two or three time zones without opening an app.

First-time mechanical GMT buyers

The Series 8 GMT offers features usually found at much higher prices, making it an ideal first serious travel watch.

Collectors who appreciate value

Enthusiasts love the Series 8 for its in-house movement, anti-magnetic rating and finishing at a price below many Swiss competitors.

One-watch owners

With 100 m water resistance, a versatile black dial and an integrated bracelet, it can be your only watch for the office, weekends and vacations.

Gift buyers

For a graduation, promotion, anniversary or Father's Day, the Series 8 GMT is a meaningful mechanical watch that arrives in Citizen's presentation box.

Who might prefer another model

If you want a blue dial, look at the NB6034-58L. If you prefer two-tone, consider the NB6033-51E. If you do not travel, a Series 8 890 without GMT may be enough.

See the Series 8 GMT at Lexor Miami

Why Buy the Citizen Series 8 GMT at Lexor Miami?

Authorized dealer

Lexor Miami is an authorized dealer. Every Citizen watch comes from official distribution, brand new, with original packaging and the manufacturer warranty.

A price well below U.S. retail

The Series 8 880 GMT NB6031-56E retails for $1,695 at other U.S. authorized jewelers. At Lexor Miami it is $1,265, a saving of $430.

Free shipping and free returns

Products priced at $150 or more ship free within the 48 contiguous United States. Approved returns within 30 days of delivery come with a prepaid return label; items must be unused and in original condition and packaging. Lexor Miami does not ship to Alaska, Hawaii, Puerto Rico, APO/FPO/DPO addresses, freight forwarders or international destinations.

A full Citizen selection

Lexor Miami carries more than 50 Citizen references, including the full Citizen watches collection of Series 8, Promaster, Tsuyosa and Eco-Drive models.

A real showroom in Miami

Try the Series 8 GMT at Lexor Miami, 2371 NW 20th St, Miami, FL 33142, Monday to Saturday, 10:00 AM to 6:00 PM, with free parking and on-site security. The team can size the bracelet for you on the spot.

Trusted by thousands

Lexor Miami is a women-owned family business with more than 20 years in luxury retail and over 3,100 five-star Google reviews.

Expert help

Ask about sizing, the GMT function or gifting on WhatsApp, call +1 (305) 633-0950, use the contact page or read the store FAQs.

Citizen Series 8 880 GMT vs. Similar Watches

Here is how the NB6031-56E compares with its sister models at Lexor Miami. Prices reflect Lexor Miami's listings at the time of writing.

Model	Dial / Bezel	Case	Complication	Price
880 GMT NB6031-56E	Black / black-blue	41 mm steel	GMT	$1,265
880 GMT NB6034-58L	Blue / blue-white	41 mm steel	GMT	$1,525
880 GMT NB6033-51E	Black / black-green	41 mm two-tone	GMT	$1,645
890 NB6060-58L	Blue, inner rotating bezel	42.6 mm octagonal steel	Date, Cal. 9051	$1,425
Tsuyosa 60 NK0024-54X	Integrated-bracelet automatic	Steel	Automatic	$625

NB6031-56E vs. NB6034-58L

Same case, movement and bracelet. The NB6034-58L has a textured blue dial and blue-white bezel for a brighter, nautical look. The NB6031-56E is more versatile and, at Lexor Miami, $260 less.

NB6031-56E vs. NB6033-51E

The NB6033-51E adds a rose- and gold-tone two-tone case and bracelet with a black-and-green bezel. Choose it for a dressier, warmer look; choose the NB6031-56E for an all-steel sport watch at a lower price.

880 GMT vs. 890

The Series 8 890 uses the Caliber 9051 without GMT, in a larger 42.6 mm octagonal case with an inner rotating bezel. If you travel, the 880 GMT is the better buy; if you want a bolder dive-inspired look, try the 890.

Series 8 vs. Tsuyosa

The Tsuyosa is Citizen's popular entry-level integrated-bracelet automatic. It is a great first mechanical watch, but the Series 8 GMT adds a premium in-house movement, sapphire case back, anti-magnetism and a true GMT.

Versus Swiss GMT watches

Many Swiss mechanical GMT watches with a true flyer movement sit well above $1,500, and few offer 16,000 A/m magnetic resistance at this level. If you are cross-shopping, compare the Series 8 GMT with travel watches from Tissot, Hamilton, Mido and Seiko at Lexor Miami; at $1,265, the Citizen is among the strongest values in the segment.

The Luxury Lifestyle: A Watch That Travels With You

From MIA to anywhere

Miami is a gateway to Latin America, Europe and the Caribbean. The Series 8 GMT is built for that life: jump the hour hand when the plane lands in São Paulo, Madrid or Mexico City, and keep Miami time on the orange GMT hand.

Boardroom to beach

The integrated steel bracelet and black dial work with a suit, a guayabera or a T-shirt. With 100 m water resistance, it is ready for a swim at South Beach or a day on a boat in Biscayne Bay.

A watch for the business traveler

Picture the routine: a 7 AM flight from Miami, a lunch meeting in New York, a video call with a partner in London at 4 PM and a check-in with family in Colombia before dinner. With the Series 8 GMT, one glance tells you where everyone is in their day, no phone required. That quiet efficiency is exactly what a travel watch should deliver.

Pair it with the right sunglasses

A black-and-steel sport watch pairs naturally with matte black or tortoise eyewear. Explore luxury sunglasses from DITA and Cartier at Lexor Miami to complete the look.

Caring for your Series 8 GMT

• Wear it regularly or wind it a few turns via the crown if it has stopped.
• Do not adjust the date between roughly 9 PM and 3 AM, when the date mechanism is engaged.
• Make sure the crown is pushed fully in before contact with water.
• Rinse with fresh water after the beach or pool and dry with a soft cloth.
• Have the watch serviced by an authorized center every few years, as with any mechanical watch.

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Frequently Asked Questions

How much is the Citizen Series 8 880 GMT NB6031-56E?

It is $1,265 at Lexor Miami, compared with a U.S. retail price of $1,695, with free shipping within the 48 contiguous states.

What movement does the NB6031-56E use?

Citizen's in-house Caliber 9054 automatic GMT movement: 24 jewels, 28,800 vph, approximately 50-hour power reserve, -10/+20 seconds per day.

Is the Citizen Series 8 GMT a true GMT?

Yes. It is a "flyer" GMT: the local hour hand jumps independently in one-hour steps without stopping the watch, while the 24-hour hand keeps home time.

What size is the Citizen Series 8 GMT?

41 mm in diameter, 13.5 mm thick and 49 mm lug-to-lug.

Is the Series 8 GMT water resistant?

Yes, to 100 meters, suitable for swimming and snorkeling.

How anti-magnetic is it?

The Caliber 9054 resists magnetic fields up to 16,000 A/m, classified as Type 2 under the Japanese JIS standard.

Why is it called the "Batman" GMT?

Collectors use "Batman" as a nickname for GMT watches with a black-and-blue bezel, like the NB6031-56E.

Does it have a sapphire crystal?

Yes. The front crystal is anti-reflective sapphire, and the case back is also sapphire, showing the movement.

Is the bracelet adjustable?

Yes. Links can be removed to fit your wrist. Lexor Miami can size the bracelet in the showroom.

How long is the power reserve?

Approximately 50 hours when fully wound.

Is the Citizen Series 8 worth it?

Reviewers describe it as excellent value: an in-house automatic GMT, strong anti-magnetism, sapphire front and back and premium finishing. At $1,265, it is one of the best-value mechanical GMTs available.

Is Lexor Miami an authorized Citizen dealer?

Lexor Miami is an authorized dealer, and every Citizen watch is brand new, authentic and covered by the manufacturer warranty.

What other Series 8 GMT colors are available?

Lexor Miami also offers the blue NB6034-58L and the two-tone NB6033-51E.

Can I return it if it doesn't suit me?

Yes. Unused items in original condition and packaging can be returned within 30 days of delivery with a prepaid label. Email info@lexormiami.com first to request a return authorization.

Can I see it in person?

Yes. Visit Lexor Miami at 2371 NW 20th St, Miami, FL 33142, Monday through Saturday, 10:00 AM to 6:00 PM.

Does it come with a box and warranty?

Yes. It arrives in its original Citizen presentation box with the manufacturer warranty.

Ready to Wear the Series 8 GMT?

The Citizen Series 8 880 GMT NB6031-56E is in stock at Lexor Miami, but quantities are limited. Order today and save $430 off U.S. retail, with free shipping, free returns and the confidence of buying from an authorized dealer.

Delivered in Citizen's original presentation box, ready to wear or to gift.

Buy the Citizen Series 8 GMT – $1,265

Free U.S. Shipping · 30-Day Free Returns · Authorized Dealer · 100% Authentic

Conclusion: Japan's Smartest Travel Watch

The Citizen Series 8 880 GMT NB6031-56E proves how far Citizen has come. Its in-house Caliber 9054 is a true flyer GMT with a 50-hour reserve and 16,000 A/m anti-magnetism. Its 41 mm steel case, textured black dial, black-and-blue bezel, sapphire crystal and exhibition case back give it the presence and finish of a far more expensive watch. And its integrated bracelet makes it comfortable from the boardroom to the beach.

At Lexor Miami, you get it from an authorized dealer at $1,265, $430 below U.S. retail, with free shipping across the contiguous states, free returns and a real team in Miami ready to help.

Explore the full Citizen collection, other luxury watches and the Lexor Miami blog. When you are ready, the Citizen Series 8 880 GMT NB6031-56E is waiting for you.

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