Citizen Series 8 831 40 mm Green Dial Silver Bracelet [NB6050-51W]

The Citizen Series 8 831 NB6050-51W brings depth and colour to a clean, contemporary design. Its textured green dial combines a geometric pattern with applied silver-tone indices and sharply shaped hands, creating contrast against the darker dial edges. A faceted 40 mm stainless steel case alternates brushed surfaces with polished details, flowing into a tapered, integrated H-link bracelet. At 10.6 mm thick, the watch offers a balanced profile that suits both tailored clothing and everyday wear.

Citizen’s Calibre 9051 automatic movement provides approximately 42 hours of power reserve, with manual winding and a stop-seconds function for precise setting. Magnetic resistance of 16,000 A/m helps protect its performance against everyday magnetic exposure, while a sapphire exhibition caseback offers a view of the mechanism. The date display at 3 o’clock, luminous hands and markers, and anti-reflective sapphire crystal keep practicality central to the design. Made in Japan and water resistant to 100 metres, this Series 8 pairs mechanical appeal with an understated sporting character.

Technical Specifications

• Brand: Citizen
• Collection: Series 8 831
• Model: NB6050-51W
• Movement: Calibre 9051 automatic mechanical with manual winding
• Power Reserve: Approximately 42 hours
• Accuracy: −10 to +20 seconds per day
• Frequency: 28,800 vibrations per hour / 4 Hz
• Magnetic Resistance: 16,000 A/m
• Case Diameter: 40 mm
• Case Thickness: 10.6 mm
• Case Material: Stainless steel
• Case Colour: Silver-tone
• Case Finish: Brushed and polished
• Dial: Textured green with applied silver-tone indices
• Hands and Markers: Luminous
• Crystal: Sapphire with anti-reflective coating
• Caseback: Sapphire exhibition caseback
• Bracelet: Integrated, tapered silver-tone stainless steel H-link bracelet
• Clasp: Fold-over clasp with hidden push buttons
• Calendar: Date at 3 o’clock
• Additional Features: Stop-seconds function
• Water Resistance: 100 metres / 10 bar
• Country of Manufacture: Japan

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