Seiko Cal. 6311 - 594

The Seiko 6311-594 represents an important milestone in Seiko's 1971 lineup. Powered by the 6311 caliber with 26j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-296a2842cb5c]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1971

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