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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →The Citizen Tsuyosa NJ0150-56L is a 40 mm automatic watch built around a blue sunray dial and an integrated stainless-steel bracelet. It pairs a date display and sapphire crystal with Citizen’s Caliber 8210 movement, a stated 42-hour power reserve and 50 m water resistance. Citizen’s later 37 mm Tsuyosa models offer a smaller size, but they are a separate option—not simply the same watch in a different fit.
What the Citizen Tsuyosa NJ0150-56L offers
The NJ0150-56L gives the Tsuyosa its recognizable integrated-bracelet sports-watch outline: the bracelet meets the case without conventional separate lugs, creating a continuous steel profile. Its blue sunray dial, applied markers and date window keep the design versatile for everyday wear while distinguishing it from a plain three-hand watch.
For the US-listed NJ0150-56L, Citizen specifies a silver-tone stainless-steel case, stainless-steel bracelet with fold-over clasp and push buttons, sapphire crystal and a 40 mm case width. The listed lug width is 9.1 mm. The product page identifies an automatic movement, date, hacking feature, Caliber 8210, a 42-hour power reserve and 50 m water resistance. These are manufacturer-listed specifications, not independent measurements. See Citizen’s NJ0150-56L specifications.
How its automatic movement works
Citizen says the watch is powered by a wound spring and that automatic mechanical movements do not require a battery. In ordinary use, wrist movement winds the mechanism; the movement can also be wound manually. Citizen lists a 42-hour power reserve, meaning the watch can continue running for that stated period after being fully wound if it is not rewound by wear or by hand. The listing does not establish real-world accuracy, which can vary between individual watches and conditions.
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- The "Tsuyosa" Automatic, from the NJ015 series, brings ultramodern sports styling right to your wrist. Executed in a versatile 40mm footprint, the sophisticated design of the watch makes a strong impression via a silver-tone stainless steel case and a seamlessly integrated, matching bracelet.
- Underneath an anti-reflective sapphire crystal, the sporty timepiece makes use of a sunray black dial, with a 3 o’clock date window and contrasting silver-tone details adding to its classic aesthetic. Powered by an automatic movement and offering up to 50 meters of water resistance, the refined timepiece is a daily wearing choice ready for work, play, and everything in between. Caliber 8210.
- 3 Hand with Date, Automatic, 42 Hour Power Reserve
- Sapphire Crystal
- 50M Water Resistant and 5 Year Limited Warranty
Is 50 m water resistance enough for swimming?
Citizen labels the NJ0150-56L’s 50 m/5 BAR rating “Still Water Swimming.” Treat that as the manufacturer’s stated use guidance rather than an unrestricted diving claim. The rating does not make the watch a dive watch, and the product description does not establish suitability for scuba diving or every water activity. Follow Citizen’s guidance for the specific watch, and ensure the crown is properly positioned before exposure to water.
Choosing between the 40 mm and 37 mm Tsuyosa
Citizen announced a 37 mm Tsuyosa family option in 2025. The NJ0150-56L remains a 40 mm reference; choosing the smaller model is a size decision, not a guarantee that all specifications, colors or details match the 40 mm watch. Wrist shape, bracelet drape and personal preference matter, so neither diameter is universally better.
Rank #2
- The "Tsuyosa" Automatic, from the NJ015 series, brings ultramodern sports styling right to your wrist. Executed in a versatile 40mm footprint, the sophisticated design of the watch makes a strong impression via a silver-tone stainless steel case and a seamlessly integrated, matching bracelet.
- . Underneath an anti-reflective sapphire crystal, the sporty timepiece makes use of a sunray green dial, with a 3 o’clock date window and contrasting silver-tone details adding to its classic aesthetic. Powered by an automatic movement and offering up to 50 meters of water resistance, the refined timepiece is a daily wearing choice ready for work, play, and everything in between. Caliber 8210.
- 3 Hand with Date, Automatic, 42 Hour Power Reserve
- Sapphire Crystal
- 50M Water Resistant and 5 Year Limited Warranty
| Detail | NJ0150-56L | 37 mm Tsuyosa family |
|---|---|---|
| Size | 40 mm case width, according to Citizen’s US product listing. | 37 mm option announced by Citizen in 2025. |
| Movement and reserve | Caliber 8210 automatic; 42-hour stated power reserve on Citizen’s US listing. | Not stated in the cited 2025 announcement. |
| Crystal and water resistance | Sapphire crystal; 50 m/5 BAR. Citizen describes this as “Still Water Swimming.” | Sapphire glass and 5 BAR, according to Citizen’s announcement. |
| Bracelet | Stainless steel with fold-over clasp and push buttons, according to the US listing. | Citizen describes a smooth, comfortable bracelet in its announcement; the statement is manufacturer wording, not an independent comfort assessment. |
| Price information | On October 8, 2026, Citizen’s US page displayed $396, discounted from a displayed $495. Both are volatile US page prices. | Citizen projected USD 375 for the 2025 spring launch; this is a launch-era projection, not a current price. |
The announced smaller option and its projected price are described in Citizen’s 2025 37 mm Tsuyosa announcement. For a separate Japanese-market reference, Citizen Japan’s 2025 spring/summer catalogue lists the NJ0151-88M at ¥66,000 including tax, with Caliber 8210, 40.0 mm width, sapphire glass and 5-atmosphere water resistance. That catalogue price applies to that Japanese reference and period, not to the NJ0150-56L or a current US purchase. View Citizen Japan’s catalogue.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Tsuyosa a good first automatic watch?
The NJ0150-56L makes sense as a first automatic if you want a recognizable steel-bracelet design, a date, a battery-free mechanical movement and a sapphire crystal in one straightforward package. Before buying, decide whether a 40 mm case suits your wrist and whether the integrated-bracelet look is the style you want: it is a defining design choice, not a neutral alternative to a conventional bracelet or strap.
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Rank #4
- The TSUYOSA Automatic, from the NJ015 series, brings ultramodern sports styling right to your wrist
- Executed in a versatile 40mm footprint, the sophisticated design of the watch makes a strong impression via a silver-tone stainless steel case and a seamlessly integrated, matching bracelet
- Underneath an anti-reflective sapphire crystal, the sporty timepiece makes use of a sunray orange dial, with a 3 o’clock date window and contrasting silver-tone details adding to its classic aesthetic
- Powered by an automatic movement and offering up to 50 meters of water resistance, the refined timepiece is a daily wearing choice ready for work, play, and everything in between
- Caliber 8210
Rank #3
- The Tsuyosa Automatic, from the NJ015 series, brings ultramodern sports styling right to your wrist.
- Executed in a versatile 40mm footprint, the sophisticated design of the watch makes a strong impression via a silver-tone stainless steel case and a seamlessly integrated, matching bracelet. Underneath an anti-reflective sapphire crystal, the sporty timepiece makes use of a sunray yellow dial, with a 3 o’clock date window and contrasting silver-tone details adding to its classic aesthetic.
- Powered by an automatic movement and offering up to 50 meters of water resistance.
- The refined timepiece is a daily wearing choice ready for work, play, and everything in between.
- Caliber E011.
- Consider the 40 mm NJ0150-56L if you want the blue dial reference with the complete specification listed above.
- Look at the 37 mm family if you prefer a smaller case, while checking the exact reference for its movement, reserve, bracelet and other details.
- Check price and stock in your market immediately before purchase. Citizen’s displayed US prices and discounts can change, and the 37 mm USD 375 figure was projected for its 2025 launch rather than stated as a current offer.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
