Seiko Cal. 6311 - 706

The Seiko 6311-706 represents an important milestone in Seiko's 1968 lineup. Powered by the 6311 caliber with 29j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-f6522aa0954a]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1968

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