Series 8
Automatic
Redefining the power of a sport watch with infinite possibilities. Introducing the Citizen Series 8 mechanical collection of modern timepieces for a modern world. The sporty designs with high-performance automatic movements make a powerful impression. Stand out in style with the refined, signature 831 mechanical watch that features a superior accuracy of -10 to +20 per day in a sleek, silver-tone stainless case and bracelet in both hairline and mirror finishes, a glossy black dial with luminous hands and markers, and an anti-reflective sapphire crystal. This sleek, Citizen automatic men’s sport watch also features enhanced magnetic resistance to protect the movement against external magnetic fields, a 42-hour power reserve and water resistance to 100 meters. Caliber number 9051.
Key Details

Model
- NB6010-81E
- 11/05/2021
Movement Technology
- 9051
- Automatic
- Powered by the release of a wound spring, mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm.
Case Width (mm)
- 40
Crystal
- Anti-Reflective Sapphire Crystal
- Impact and shatter resistant - anti-reflective coating deflects light
Features

Refined & Sharp
- 3-Hand
- Automatic
- Date
- Luminous Hands/Markers
- Sapphire Crystal
Water-Resistance
- WR100/10Bar/333ft [Swimming, Showering & Snorkeling]
Dial
- Black
Band Type
- Bracelet
- Stainless Steel
Case Material
- Silver-Tone
- Stainless Steel
Additional Functions
- 42 Hour Power Reserve
- Antimagnetic 16000
- -10~+20 s/d