Citizen Watch: Tsuyosa 60 Black 37 mm NK0030-51E

The Citizen Tsuyosa 60 Black: a new 37 mm size for the 60-hour power reserve Tsuyosa

The Citizen Tsuyosa 60 Black 37 mm NK0030-51E translates the collection's signature design into a new compact 37 mm diameter. This Tsuyosa pairs an integrated stainless steel case and bracelet with a guilloché black dial. The Citizen Tsuyosa 60 thus retains the range's sport-chic identity while adopting more contained proportions, designed by the brand to suit a wide variety of wrists.

This Citizen Tsuyosa 60 measures 37 mm in diameter by 11.5 mm in thickness and has an official weight of 122 g. Its black dial features applied baton indices, luminescent hands, and a date window at 3 o'clock topped by a magnifying lens. A sapphire crystal protects the whole, while the crown is integrated near 4 o'clock to preserve the fluid line of the black Tsuyosa 60.

The Citizen Tsuyosa 60 37 mm is powered by the Citizen caliber 8310, an automatic mechanical movement with 21 jewels operating at 21,600 vibrations per hour / 3 Hz. It features manual winding, a hacking seconds function, and offers a power reserve of approximately 60 hours. Citizen claims an accuracy of -20 to +40 seconds per day, allowing the Tsuyosa 60 to continue running for more than two days after being fully wound.

Finally, the black Citizen Tsuyosa 60 features an integrated stainless steel bracelet with solid links and brushed and polished finishes. The transparent case back reveals the automatic caliber and its blued screws. With a water resistance of 5 bar / 50 meters, the black Tsuyosa 60 positions itself as a versatile, compact automatic watch that is easy to wear on a daily basis.

Technical Specifications

• Brand: Citizen
• Collection: Tsuyosa
• Model: Tsuyosa 60 Black
• Reference: NK0030-51E
• Movement: Automatic mechanical
• Caliber: Citizen 8310
• Frequency: 21,600 vibrations/hour - 3 Hz
• Jewels: 21
• Power reserve: Approximately 60 hours
• Accuracy: -20 to +40 seconds/day
• Functions: Hours, minutes, seconds, and date
• Case: 316L stainless steel
• Finish: Alternating brushed and polished surfaces; polished bezel
• Diameter: 37 mm
• Thickness: 11.5 mm
• Weight: 122 g
• Crystal: Sapphire
• Case back: Transparent, revealing the automatic movement
• Dial: Guilloché black, date with magnifier at 3 o'clock
• Hands: Central hour, minute, and second hands; luminescent material
• Indices: Applied batons, with luminescent material.
• Crown: Positioned near 4 o'clock
• Bracelet: Integrated stainless steel, "Jubilee" style
• Clasp: Push-button butterfly clasp
• Water resistance: 5 bar / 50 meters
  
• Citizen Warranty: 3 years

Why choose the Citizen Tsuyosa 60 37 mm?

The Citizen Tsuyosa 60 Black 37 mm NK0030-51E brings a particularly interesting evolution to the collection thanks to its new 37 mm diameter. The 60-hour power reserve, sapphire crystal, automatic Citizen 8310 caliber, and transparent case back give the Tsuyosa 60 a solid technical profile, while its thickness of only 11.5 mm preserves a balanced presence on the wrist.

The black Citizen Tsuyosa 60 also stands out for its black guilloché dial, jubilee bracelet, and contrasting finishes. This new Tsuyosa 60 thus offers a more compact alternative to the 40 mm versions while retaining the 60-hour mechanical movement that defines this Tsuyosa. For those seeking a Citizen automatic sport-chic watch in a versatile size, the Tsuyosa 60 NK0030-51E is one of the most interesting novelties in the range.

The Citizen brand

Founded in Japan, Citizen has been developing mechanical, quartz, and solar watches for over a century. The Japanese manufacturer also masters the design and production of its own movements, including the caliber 8310 used in the Citizen Tsuyosa 60. This industrial expertise allows the brand to offer high-autonomy automatic movements in accessible watches designed for everyday use.

With the Citizen Tsuyosa 60, the brand continues the development of a collection inspired by its NH299 mechanical watches from the late 1990s and early 2000s. The new 37 mm Tsuyosa 60 retains the integrated bracelet and the visual identity of the range while responding to the return of more compact diameters. The Citizen Tsuyosa 60 Black thus combines the brand's heritage with a contemporary and particularly versatile configuration.