Caliber

8310

Movement: Automatic
Power reserve: About 60 hours
Functions: Date

Documented in Citizen TSUYOSA Collection (2026), PDF page 5.

Watches using the 8310

NK0020-55E

TSUYOSA 60 Hours

TSUYOSA · Cal. 8310

NK0023-57L

TSUYOSA 60 Hours

TSUYOSA · Cal. 8310

NK0024-54X

TSUYOSA 60 Hours

TSUYOSA · Cal. 8310