Seiko Cal. 7031 - 686

The Seiko 7031-686 represents an important milestone in Seiko's 1972 lineup. With its 19mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-725d51faad5d]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1972

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