Representing the embodiment of thoughtful design and an ultra-clean execution, the new Series8 831 features a 40mm silver-tone stainless steel faceted case alongside the best of Citizen's brushed and polished finishing techniques. Water resistant to 100m and able to withstand magnetic fields up to 16,000 A/m, the watch is powered by the high-performance Caliber 9051. The automatic movement is visible through a sapphire crystal exhibition case back and is capable of maintaining an accuracy of +20 / -10 seconds per day with a frequency of 28,800 v/h. As a whole, the timepiece's superior technical performance perfectly supports its elevated style.

Its silver-tone stainless steel H-link bracelet continues the case's refined use of brushed and polished finishing techniques, ensuring the watch is ready for wear in any instance. Underneath a sapphire crystal, a light blue textured dial is as captivating as it is practical, playing in the light while being highly legible on account of its applied indices and the sharp design of hands. A 3 o'clock date window adds even more utility to the design.

Caliber: 9051

Movement: Automatic

Technology: 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

Band Type: Bracelet

Band Material: Stainless Steel

Case Material: Silver-Tone, Stainless Steel

Crystal: Anti-Reflective Sapphire Crystal, Impact and shatter resistant - anti-reflective coating deflects light

Clasp: Fold Over Clasp with Hidden Push Buttons

Dial: Light Blue

Water-Resistance: WR100/10Bar/333ft [Swimming, Showering & Snorkeling]

Functions:

• 42 Hour Power Reserve
  
• Antimagnetic 16000
  
• -10~+20 s/d