Seiko Cal. 5668 - 940

The Seiko 5668-940 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-78527dd87448]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1979

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