[Series 8 New] Citizen NB6060-07A｜20 ATM waterproof x double rotating bezel x Cal.9051, sports mechanical ability with checkered pattern

A mechanical model with a sporty soul from Citizen Series 8NB6060-07Awas released in March 2026.
A mechanical watch for active people, equipped with a Cal.9051 automatic movement, water resistant to 20 ATM, and a bi-rotating inner bezel. The refreshing white and blue coloring and dial with a traditional Japanese checkered pattern motif are unique, and will lift your mood every time you put it on your wrist.

Another noteworthy point is that it uses a newly designed urethane band that is designed to fit comfortably on your wrist. Although it has a sporty impression, the 5-piece structure case with the delicate hairline and intricately polished mirrors typical of the Series 8 has a dignity that sets it apart from just an ordinary active watch. This is a watch that will resonate with people who want to make the most of their mechanical watches.

The moment you put it on your arm, you will feel active.

A piece that makes a picture even if you line it up or look at it.

A white and blue dial with a checkered pattern.

Series 8's pride in talking about every detail.

■ Main features

• Equipped with Cal.9051:Mechanical automatic winding + manual winding compatible. Accuracy -10 to +20 seconds/day (average daily difference in static conditions)
• 20 ATM waterproof:Suitable for active scenes with diver's level waterproof performance
• Bi-rotating inner bezel:Operated by the crown at the 2 o'clock position. Active in diving and measurement scenes
• Checkered pattern:Original design with traditional Japanese designs on the dial and back of the band
• Sapphire glass (clarity coating):Reduces reflections and allows you to clearly see the dial
• See-through back:Enjoy the heartbeat of Cal.9051 at any time
• Type 2 magnetic resistance:Protect accuracy from magnetic fields such as smartphones
• Approximately 42 hours power reserve:Duration at maximum winding
• Second hand stop function:Accurate time setting possible
• Urethane band:Newly designed with a focus on comfort on the wrist. Light and comfortable to wear
• Luminous (hands + index):Can be clearly seen even in the dark
• Made in Japan:Domestic model finished to Series 8 quality standards

■Specs

■ Accuracy and reliability of Cal.9051

Cal.9051 installed in the NB6060-07A is an in-house movement made by Citizen that is used in the Series 8 mechanical line. The accuracy is an average difference of -10 to +20 seconds per day in static conditions, which is a high standard for a mechanical watch. Compatible with both automatic and manual winding, the power reserve is approximately 42 hours when fully wound.

The pleasure of watching the rotor's movement through the see-through back is the real thrill of a mechanical watch. The feeling of keeping time ticking while winding up the spring with daily movements creates a unique attachment that quartz does not have. It also has a second hand stop function (hacking), so there is no problem setting the time accurately.

■ 20 ATM water resistant x double rotating inner bezel shows seriousness

Water resistance is 20 ATM. It has specs that allow it to be used for underwater sports such as swimming and snorkeling, and it has waterproof capabilities comparable to a diver's watch. The bi-rotating inner bezel, which is operated by a crown located at 2 o'clock, is also a practical feature for measuring and managing dive time.

Despite having these specs, the exterior is decorated with a traditional Japanese checkered pattern motif on the dial and an original pattern on the back of the band. A design that combines the functionality of a sports watch with the beauty of the design typical of the Series 8. I think it's one of the sharpest mechanical watches out there.

■ Perfection of clarity coating and case design

The sapphire glass uses Citizen's proprietary "Clarity Coating" that increases light transmittance and reduces reflection. Even under strong sunlight outdoors, the dial can be seen as if the glass were not there.

The case has a five-piece structure that combines guard parts on both sides in the center, giving it a design with a strong edge. The intricately polished hairline and mirror finish gives it a classy look that sets it apart from a mere sports watch. The weight of approximately 122g also makes it feel like it's sitting on your wrist, making it stand out.

■ “Ease of use” created by urethane bands

The band is made of a newly designed urethane material that is designed to fit comfortably on your wrist. The biggest advantage is that it is lighter than metal bracelets and fits better against your skin. The band can be adjusted to a wide range of sizes from 150 to 210 mm, making it comfortable to wear on everyone from thin to thick wrists.

Don't overlook the fact that it has 2 types of magnetic resistance. Even those who regularly handle magnetic devices such as smartphones and tablets can continue to use them without worrying about the effect on accuracy. Both the hands and indexes are luminous, ensuring visibility in dark places. This is a book with a high density of practicality.

■ Recommended for these people

• Those looking for a mechanical watch with full-fledged waterproof performance
• Those who are interested in the Series 8 sports model
• Those who enjoy diving and waterside activities
• Those who are attracted to designs that incorporate traditional Japanese designs
• Those who prefer the light feel of a urethane band
• Those who want to enjoy mechanical movement with a see-through back
• Introduction to mechanical watches - Intermediate users looking for sports specs
• People who are looking for a special book as a gift for a birthday or anniversary.

■ Buyer's comment

Personally, the addition of a sports model to Series 8 is something I've been waiting for. When you pick up the NB6060-07A, you'll notice that the high quality of the case and the lightness of the urethane band coexist, and it feels like the perfect balance between ease of use and coolness. It is also interesting that the Japanese motif of the checkered pattern has been so naturally applied to a sports watch. I think that the price of 187,000 yen for the combination of 20 ATM water resistance and Cal.9051 mechanical type is quite attractive as a Series 8 cost performance.

— Nanapure Buyer Fujimuro

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