Citizen Watch: Tsuyosa 60 Green 37 mm NK0030-51X

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

The Citizen Tsuyosa 60 Green 37 mm NK0030-51X translates the collection’s signature design into a new, compact 37 mm diameter. This Tsuyosa pairs a stainless steel case and integrated bracelet with a guilloché mint green dial. The Citizen Tsuyosa 60 thus retains the line’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 and 11.5 mm in thickness, with an official weight of 122 g. Its mint green dial features applied baton indices, luminescent hands, and a date window at 3 o'clock topped with a magnifying lens. A sapphire crystal protects the whole, while the crown is integrated near 4 o'clock to preserve the fluid lines of the green Tsuyosa 60.

The Citizen Tsuyosa 60 37 mm is powered by the Citizen 8310 caliber, a mechanical automatic movement with 21 jewels, operating at 21,600 vibrations per hour / 3 Hz. It features manual winding, hacking seconds, and offers a power reserve of approximately 60 hours. Citizen announces 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 green Citizen Tsuyosa 60 features an integrated stainless steel bracelet with solid links and a mix of 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 green Tsuyosa 60 positions itself as a versatile, compact, and easy-to-wear automatic watch for daily use.

Technical specifications

• Brand: Citizen
• Collection: Tsuyosa
• Model: Tsuyosa 60 Green
• Reference: NK0030-51X
• Movement: Mechanical self-winding
• 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
• Finishing: 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 mint green, cyclops date 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 buckle
• Water resistance: 5 bar / 50 meters
  
• Citizen Warranty: 3 years

Why choose the Citizen Tsuyosa 60 37 mm?

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

The green Citizen Tsuyosa 60 also stands out for its guilloché mint green dial, jubilee-style bracelet, and contrasting finishes. This new Tsuyosa 60 thus offers a more compact alternative to the 40 mm versions while retaining the 60-hour mechanics that define this Tsuyosa. For anyone looking for an automatic Citizen sport-chic watch in a versatile format, the Tsuyosa 60 NK0030-51X is one of the most interesting new arrivals in the range.

The Citizen brand

Founded in Japan, Citizen has been developing mechanical, quartz, and solar-powered watches for over a century. The Japanese manufacture also masters the design and production of its own movements, including the 8310 caliber 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 to develop 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 visual identity of the range while responding to the return of more compact diameters. The Citizen Tsuyosa 60 Green thus combines the brand's heritage with a contemporary and highly versatile configuration.