How much does the Citizen Series 8 831 cost?

The Citizen Series 8 831 has a manufacturer MSRP of $1,095 USD. On the secondary market it averages around —.

What movement does the Citizen Series 8 831 use?

The Citizen Series 8 831 is powered by the 9051 automatic movement with a 42-hour power reserve.

How big is the Citizen Series 8 831?

The case measures 40mm in diameter.

What is the water resistance of the Citizen Series 8 831?

The Citizen Series 8 831 is rated to 100m of water resistance.

What kind of crystal does the Citizen Series 8 831 have?

The Citizen Series 8 831 uses a Sapphire crystal.

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Citizen Series 8 831

Name: Citizen Series 8 831
Brand: Citizen
SKU: NB6050
Price: 1095 USD
Availability: InStock

Ref. NB6050

Sport

2 Variants

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Retail MSRP

$1,095

Low

—

Avg

—

High

—

Static data

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Case

40mm

Power Reserve

42h

Movement

Automatic

Water Resistance

100m

Crystal

Sapphire + AR

Case Dimensions

Diameter40mm

Thickness—

Lug-to-Lug—

Lug Width20mm

Case Build

MaterialStainless Steel

Water Resistance100m

Crystal & Dial

CrystalSapphire

AR CoatingUnderside

Dial ColorGreen

Movement

Caliber

9051

TypeAutomatic

Beat Rate—

Power Reserve42 hours

Jewels—

HackingNo

Hand-WindingNo

Complications42 Hour Power Reserve, Antimagnetic 16000, -10~+20 s/d

Design Language

Dial styleTextured

BezelFixed

Bracelet / strapIntegrated

HandsBaton

AI-detected from product image · 5/22/2026

In a nutshell

The Citizen Series 8 831 (ref. NB6050) is an automatic sport watch, with a 40mm stainless steel case, powered by the 9051 movement and a 42-hour power reserve. Water resistance is rated to 100m, under a sapphire crystal, with 42 hour power reserve, antimagnetic 16000, -10~+20 s/d complications. Manufacturer MSRP is $1,095. The dial color is green.

Owners widely praise the Citizen Series 8 831 for its finishing, with one owner noting it exceeded expectations. Reviewers highlight the textured Ice Blue dial and the bracelet's play of light, contributing to a comfortable and luxurious feel on the wrist. The watch features a 40mm ion-plated stainless steel case, a sapphire crystal, and 100 meters of water resistance. It is powered by the in-house Miyota Caliber 9051 automatic movement, which has a 42-hour power reserve and an accuracy range of -10 to +20 seconds per day. On balance, owners and reviewers rate the Citizen Series 8 831 highly for its impressive finishing and dial design at its price point.

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