Seiko Cal. 6318 - 331

The Seiko 6318-331 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-c373dfb2ae3f]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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