Citizen Tsuyosa Automatic NK5010-51L

This is the watch

Blue takes center stage in the NK5010-51L, creating a sharp contrast against the silver-colored dial details. This variant is Citizen's modernized interpretation of the Tsuyosa concept established during the late 1990s and 2000s. Kronura places this model in the men's Sport-Dress segment. The distinct dial color gives this version its own direction within the collection’s broader color palette, featuring a sports-influenced shape and a classic foundation.

Material & fit

The case is round, made of silver-colored stainless steel, and measures 40 mm in diameter with a thickness of 11.7 mm. The weight is 147 g. Citizen describes a smooth top with beveled sections, fine brushing, and polished contrasts on the bezel and the center links of the bracelet. The solid steel bracelet is 22 mm wide according to Kronura's specifications and features rounded link elements designed for wearing comfort. A security folding clasp with dual push-buttons keeps the bracelet closed. Scratch-resistant sapphire crystal protects the dial.

Highlights

• The mechanical automatic caliber 8322 has an indicated precision of −20/+40 seconds per day.
• The power reserve is 60 hours.
• The water resistance is 5 ATM, equivalent to 50 meters; this level is not intended for swimming.

Good to know

• How is the time displayed? Analog, with two central hands and a separate small seconds sub-dial at six o'clock.
• Is there luminous material? Yes, Citizen specifies luminous material on both the hands and the baton indices.
• Where is the crown positioned? At the four o'clock position to maintain the model's slim silhouette.
• What is the case back like? Citizen specifies an exhibition screw-down case back.
• How is the bracelet changed? The two internal pins in the quick-release system are pressed inward; an extra interchangeable strap is not included.