Seiko Cal. 5678 - 231

The Seiko 5678-231 represents an important milestone in Seiko's 1966 lineup. With its 22mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-ed95efb05fd4]

Also known as: UFO, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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