When you hear the series name "TSUYOSA", what kind of watch do you imagine? Mechanical watches from the Citizen collection have gained popularity with their rich color variations. The new product, NJ0230-59L, is based on the theme of ``Shore'' and incorporates the dynamism of the waves into its design.
A sporty look with a navy dial, silver bracelet, and 120-click unidirectional rotating bezel. Although it is equipped with an actual mechanical (self-winding + hand-winding) machine, you can't miss the authentic specifications of 10 ATM water resistance and sapphire glass. This model has a presence that makes you feel good just by wearing it on your wrist.
A sporty presence that stands out with its navy dial and silver bracelet.
Check out the strength of the 45.5mm case on your wrist.
Variation: NJ0231-56L. Other colors of the same series are also attractive.
Deep navy dial and 120 click unidirectional rotating bezel.
NJ0231-56L front. The color completely changes the look.
■ What is TSUYOSA? Background of the new “Shore” themed work
Citizen Collection "TSUYOSA" is a mechanical watch series whose brand concept is "strength", which means strength. Although it is located in the entry to mid-range, it allows you to experience the fun of mechanical models, and its rich color variation and unique design make it popular with a wide range of people from the young generation to watch enthusiasts.
This time, NJ0230-59L is a new product with the theme of "Shore". The design embodies the sense of dynamism felt at the seaside with its navy dial and 120-click unidirectional rotating bezel. Release date is March 2026. It looks great for both casual and outdoor scenes.
■ 3-row band x high-quality inner clasp—a commitment to comfort
What the TSUYOSA series is particularly particular about is ``good fit on the arm.'' NJ0230-59L also uses a 3-row bracelet designed to fit your wrist. What's more, the clasp has a high-quality finish, giving it a luxurious feel that goes beyond just a sports watch.
The substantial weight of 148g gives it the presence of a mechanical device, but the 3-row bracelet wraps around your arm so it will naturally fit in with you as you wear it. The belt width is approximately 22 mm, and the arm circumference can be up to approximately 21 cm, making it suitable for a wide range of physiques.
■ 120-click unidirectional rotating bezel—fun to operate
What really stands out about this model is the 120-click unidirectional rotating bezel. This feature is derived from a diver's watch, and is designed not to rotate backwards in order to manage elapsed time underwater. The clicky controls are simply fun and bring the feeling of "manipulating a clock" into your daily life.
Combined with the colorful and unique dial, this bezel becomes the focal point of the design. One of the highlights is that the navy dial and bezel ring of a similar color create a sense of unity.
■ Caliber 8210—Enjoy the charm of mechanical technology with a see-through back
It is equipped with Citizen's caliber 8210. The movement is compatible with both automatic and manual winding, has a frequency of 21,600 vibrations/hour (5 vibrations), and has 21 jewels. The accuracy is -20 to +40 seconds per day in a static state, which is typical of a mechanical type.
The case back is a see-through back. Through the transparent back, you can watch the rotating weight (rotor) and delicately moving gears in real time. You can easily experience the real pleasure of mechanical watches - this is one of the main reasons why TSUYOSA is supported. The watch lasts about 42 hours when fully wound, and the second hand stop function allows you to accurately set the time.
■ Sapphire glass x 10 ATM water resistance—packed with authentic specifications
The ability behind the sporty design cannot be overlooked. The glass is made of scratch-resistant sapphire glass. Water resistant to 10 ATM, making it suitable for swimming and snorkeling. The concept of TSUYOSA, which is active in outdoor and seaside scenes, and the functionality are well matched.
Compatible with type 1 magnetic resistance, so you can rest assured even in environments that are easily affected by magnetism. Equipped with date display and quick date correction functions, there is no compromise in terms of practicality.
■ Summary of main features
- New TSUYOSA “Shore” theme:Sporty design that captures the dynamism of the coast
- Navy dial x silver bracelet:Colorful and unique color scheme
- 120-click unidirectional rotating bezel:Operability and presence derived from divers
- Caliber 8210 (automatic + manual winding):21 koku, 21,600 times/hour, lasts about 42 hours
- See-through back:You can enjoy the movement of the rotor and gears from the back side.
- Sapphire glass:Resistant to scratches and maintains clear vision for a long time
- 10 ATM waterproof:Also suitable for swimming and outdoor scenes
- Magnetic resistance type 1
- 3-row bracelet x high-quality inner clasp:Balances comfort and luxury
- Second hand stop function:The time can be set accurately
- Date display/fast date correction function
■Specs
| brand | CITIZEN |
|---|---|
| series | Citizen Collection TSUYOSA |
| Product number | NJ0230-59L |
| Caliber No. | 8210 |
| Drive method | Mechanical (self-winding + manual winding) |
| precision | −20 to +40 seconds/day (average daily difference in static conditions) |
| duration | Approximately 42 hours (at maximum winding) |
| Number of stones / frequency of vibration | 21 stones / 21,600 times/hour (5 vibrations) |
| case material | stainless steel |
| band material | Stainless steel (pin type) |
| glass | sapphire glass |
| Dial color | navy |
| band color | silver |
| case size | Approximately 45.5×40×13mm |
| belt width | Approximately 22mm |
| weight | Approximately 148g |
| belt around arm | Maximum approximately 21cm |
| waterproof | 10 ATM water resistant |
| Anti-magnetic | Magnetic resistance type 1 |
| Design features | Reverse rotating bezel (120 clicks)/See-through back |
| Other functions | Second hand stop function/Date display/Easy date correction function |
| accessories | Warranty card/dedicated box |
| Release date | Released in March 2026 |
| list price | 67,100 yen (tax included) |
| Guarantee | 3 years international warranty (5 years domestic warranty with MY CITIZEN registration) *Nanapure is currently running a 7-year warranty campaign. |
■ Recommended for these people
- Those looking for their first mechanical watch
- Those who are interested in the TSUYOSA series
- Those looking for a sporty pair of navy and silver
- Those who like "playable" features such as unidirectional rotating bezel and see-through back
- For those who are particular about 10 ATM water resistance, sapphire glass, and authentic specifications.
- People who are looking for a watch that can be used for a wide range of purposes, from casual wear to outdoor activities.
- For those who want to choose a special book as a gift for a loved one or as a reward for themselves.
■ Buyer's comment
TSUYOSA is a series that has so many colors that I always get confused, but I think this navy one is especially true. It's a deep color inspired by the sea, and it's easy to match, but it has a lot of personality. The 120-click bezel feels nice to the touch, and when I hand it to someone who doesn't own a watch, they usually say, ``This is interesting.'' I think the see-through back allows you to see the movement of the rotor, making it a great introduction to mechanical systems. Honestly, at 67,100 yen, it is a model with high cost performance, including sapphire glass and 10 ATM water resistance.
■ Purchase at each mall
■ Related models
■ Consult on LINE
