Citizen Series 8 831

Citizen · Series 8

Citizen Series 8 831

Citizen Series 8 831 (reference NB6050-51W) — specifications, measurements, watch images and standardized wrist-fit previews for informed comparison.

A representative sport / integrated model in the Series 8 family.

Best forSport / Integrated
Not ideal forSpecifications requiring final verification

At a glance

ReferenceNB6050-51W
CollectionSeries 8
Model lineSeries 8
Production statusCurrent
Official size40 mm
Watch technology InfoMechanical
DisplayAnalog
Movement InfoAutomatic
Key features InfoHours, Minutes, Seconds
Case diameter Info40 mm
Thickness Info10.1 mm
Lug-to-lug Info46 mm
Power reserve / runtime50 hours
Water resistance100 m
OriginJapan
Recommended wrist Info14–21 cm
Price categoryPremium

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Specifications last verified: 2026-08-06.

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